Westbrass Plastic Air Gap 2 Pack Polished Chrome
4.6Editor score
Includes two units
Plastic body construction
Standard chrome finish
In this guide
A dishwasher air gap is a critical plumbing component that prevents contaminated water from backing up into your clean dishes during the drainage cycle. It acts as a physical barrier ensuring that wastewater flows safely into your drain line without risking cross contamination or unpleasant odors in your kitchen sink area.
We evaluated ten leading air gap models based on material durability, design aesthetics, ease of installation, and compliance with standard plumbing codes. Each product was reviewed for its ability to prevent leaks, resist corrosion over time, and blend seamlessly with various kitchen sink and faucet styles.
This roundup highlights the standout features of each pick so you can make an informed decision for your home renovation or replacement project. Keep in mind that availability and pricing may vary by retailer and region so always verify current stock before placing your order.
Top 3 Picks for Best Air Gap for Dishwasher
KRAUS Dishwasher Air Gap in Spot Free All-Brite Stainless Steel
4.8Editor score
Solid brass cover for durability
Corrosion resistant finish
Universal dishwasher compatibility
Dishwasher Air Gap Cover Solid Brass Overflow Vent Cap
4.8Editor score
Skirted design for aesthetics
Solid brass core material
Curved top prevents buildup
Top 10 Best Air Gap for Dishwasher in 2026 Compared
The following table provides a side by side overview of all ten models including their key specifications design features and material composition to help you quickly identify the option that best fits your kitchen setup and aesthetic preferences.
ProductsSpecificationsEditor scorePrice
Editor's Choice
KRAUS Spot Free All-Brite Stainless Steel
Solid brass cover
ABS plastic body
9 inch overall height
1.5 inch hole size
4.8Editor score
Editor's Choice
2-Pack Dishwasher Air Gap Cover Splash Guard
Food grade silicone
Water ramp design
Grey and black colors
Reduces counter mess
4.3Editor score
Best Premium
Dishwasher Air Gap Cover Brushed Nickel
High quality brass
Curved top design
1.8 inch diameter
Flush installation style
4.7Editor score
Westbrass Plastic Air Gap 2 Pack Polished Chrome
Plastic body included
1.625 inch cap diameter
5/8 inch inlet
Exposed lip design
4.6Editor score
Dishwasher Air Gap Kits Polished Chrome Finish
Universal air cap kit
Seven color options
Solid brass cap
Escutcheon included
4.6Editor score
Dishwasher Air Gap Cover Brushed Nickel
Skirted design
Solid brass core
Stain resistant surface
Curved top style
4.8Editor score
Dishwasher Air Gap Cover Black Only Matte
Matte black finish
Solid brass construction
Eight color options
Skirted cap style
4.7Editor score
Prime-Line MP53045 Stamped Steel Cover
Stamped steel material
Chrome plated finish
Push on installation
Single pack only
4.5Editor score
KRAUS Dishwasher Air Gap Matte Black
Solid brass cover
Premium corrosion finish
ABS plastic body
Universal design fit
4.8Editor score
Dishwasher Air Gap Cover Matte Black
High end finish
Curved top design
Universal fit size
Easy installation kit
4.7Editor score
1. KRAUS Dishwasher Air Gap in Spot Free All-Brite Stainless Steel – Best Overall
KRAUS Dishwasher Air Gap in Spot Free All-Brite Stainless Steel
Solid brass cover
Corrosion resistant
9 inch height
Universal fit
The KRAUS Dishwasher Air Gap in Spot Free All-Brite Stainless Steel stands out as a top choice for homeowners seeking reliability and style. With a rating of 4.8 stars it reflects high customer satisfaction regarding its build quality and effective backflow prevention capabilities.
Pros
- High end appearance
- Superior durability
- Prevents contamination
- Comes with warranty
Cons
- Requires standard hole size
- Slightly higher price
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This model features a solid brass cover that offers exceptional durability and a high end look that elevates your kitchen sink area. The corrosion resistant finish ensures the unit maintains its pristine appearance over time without dulling or fading under regular use conditions.
While it requires a pre drilled hole of 1.5 inches which is standard for most installations the price point is slightly higher than basic plastic alternatives. However the lifetime reliability and code compliance make this a worthwhile investment for long term peace of mind.
If you are looking for a premium air gap that combines function with form this model is an excellent fit. It is particularly recommended for those who want a flush install clean look and a finish that complements modern stainless steel faucets and sinks.
Superior Material Durability
The solid brass cover provides a robust barrier against wear and corrosion ensuring the component remains functional for many years without needing replacement.
Clean Flush Installation
The cap covers the entire air gap body allowing it to sit flush with the sink deck or countertop for a polished integrated aesthetic.
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2. 2-Pack Dishwasher Air Gap Cover Water Ramp Silicone Splash Guard – Best Accessory
2-Pack Dishwasher Air Gap Cover Water Ramp Silicone Splash Guard
Food grade silicone
Water ramp design
Two color choices
Reduces counter mess
This silicone splash guard serves as a practical accessory to catch drips from your existing air gap cover and direct them into the sink. Rated at 4.3 stars it is appreciated for its ability to keep countertops dry and clean without requiring complex installation.
Pros
- Catches drips effectively
- Easy to clean material
- Sleek kitchen accessory
- Affordable price
Cons
- Does not prevent backflow
- Size may vary slightly
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Made from 100 percent food grade silicone the guard is durable and odorless ensuring it remains safe for kitchen use. The four degree slope helps water drain efficiently and the available grey or black colors blend seamlessly with most home decor styles.
It is important to note that this product is designed to manage surface water and not to prevent backflow contamination itself. Users should still have a functional primary air gap installed to meet plumbing codes and protect against wastewater backup into dishes.
For households dealing with frequent splashes around the sink this accessory is a smart addition to your kitchen setup. It works well alongside standard air gaps to maintain a tidy counter and reduce the need for constant wiping.
Efficient Water Drainage
The unique slope design guides water away from the air gap cap and into the sink bowl preventing pooling and mess on the countertop.
Durable Silicone Build
High quality silicone resists wear and tear and can be easily cleaned or replaced when needed ensuring long term utility.
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3. Dishwasher Air Gap Cover Solid Brass Overflow Vent Cap – Best Replacement Kit
Dishwasher Air Gap Cover, Dishwasher Air Gap Cap for Kitchen Sink, Solid Brass Dishwasher Overflow Vent Cap Replacement Kit, Brushed Nickel
High quality brass
Curved top design
1.8 inch diameter
Flush installation style
This replacement kit offers an elegant solution for upgrading an old or damaged air gap cover without changing the entire plumbing setup. With a 4.7 rating it is valued for its solid brass construction and the brushed nickel finish that adds a sophisticated touch to the sink area.
Pros
- Elegant finish
- Prevents vapor buildup
- Universal fit size
- Easy to install
Cons
- Requires existing plastic body
- Specific diameter needed
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The curved top design is a standout feature that helps prevent water vapor buildup which can lead to paint peeling or discoloration over time. This attention to detail ensures the unit maintains a flawless appearance even in humid kitchen environments.
It fits most standard air gap bodies with a cap diameter of 1.8 inches making it versatile for many existing installations. However if your current unit has a different size you may need to check specifications carefully before purchasing to ensure compatibility.
Homeowners looking to refresh their kitchen aesthetic without major renovation will find this kit highly beneficial. It provides a premium look and functional protection at a reasonable price point for those who want to update their existing hardware.
Prevents Paint Peeling
The curved top design stops water vapor from accumulating on the surface which reduces the risk of paint peeling on nearby cabinetry.
Premium Brass Construction
High quality brass provides excellent resistance to corrosion ensuring the cap looks new and functions well for a long service life.
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4. Westbrass Plastic Air Gap 2 Pack Polished Chrome – Best Budget
Westbrass Plastic Air Gap, 2 Pack, Polished Chrome
Plastic body included
1.625 inch cap diameter
5/8 inch inlet
Exposed lip design
The Westbrass Plastic Air Gap 2 Pack offers an affordable solution for replacing multiple units or having a spare on hand. With a 4.6 rating it is recognized for providing standard functionality at a budget friendly price that does not sacrifice essential code compliance features.
Pros
- Value pack of two
- Standard plumbing fit
- Chrome finish aesthetic
- Affordable option
Cons
- Plastic body only
- Exposed lip visible
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The polished chrome finish gives it a clean and modern look while the plastic body ensures lightweight and corrosion resistant performance. Each unit includes a cap with a 1.625 inch diameter which fits many standard sink holes and plumbing configurations.
One trade off is that the cap leaves the lip of the air gap body exposed when installed which may not appeal to those seeking a fully flush look. However this design is simple and functional for households prioritizing utility and value over concealed aesthetics.
This option is ideal for contractors or homeowners who need reliable air gaps for multiple sinks or rental properties. It delivers consistent performance and meets basic plumbing requirements without a hefty price tag.
Value Pack Convenience
Buying two units together provides excellent value for those needing replacements for multiple kitchens or want a backup ready for future issues.
Standard Plumbing Fit
The standard inlet and outlet sizes ensure compatibility with common drain lines making installation straightforward for most setups.
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5. Dishwasher Air Gap Kits Polished Chrome Finish – Best Versatility
Dishwasher Air Gap Kits with Dishwasher Air Gap Cover and Matching Escutcheon, Replacement air gap dishwasher,Solid Brass Air Gap Cap, Polished Chrome Finish
Universal air cap kit
Seven color options
Solid brass cap
Escutcheon included
This air gap kit stands out for its versatility with seven color options available to match almost any kitchen sink and faucet combination. Rated at 4.6 stars it is appreciated by users who want a customized look without compromising on the durability of the solid brass cap.
Pros
- Many color choices
- Durable brass cap
- Complete kit included
- Prevents contamination
Cons
- Color may vary slightly
- Installation may need care
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The kit includes a matching escutcheon which covers the entire air gap body and installs flush for a clean and integrated appearance. This comprehensive approach simplifies the replacement process by providing all necessary components for a complete upgrade in one package.
While the color options are extensive minor variations in finish tone can occur between batches which is typical for painted metal items. Overall the solid brass construction ensures that the cap remains resistant to corrosion and rust for years of reliable service.
For homeowners looking to coordinate their dishwasher air gap with their existing hardware this kit offers a practical and stylish solution. It is a great choice for those who value customization and want a seamless visual match in their kitchen.
Color Customization
Having seven color options allows users to perfectly match their specific kitchen hardware ensuring a cohesive and polished design.
Complete Kit Design
Including the escutcheon in the package ensures a flush installation that looks professional and hides the underlying plumbing components.
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6. Dishwasher Air Gap Cover Solid Brass Skirted Design – Best Premium
Dishwasher Air Gap Cover for Kitchen, Solid Brass Air Gap Cap with Skirted Design
Skirted design
Solid brass core
Stain resistant surface
Curved top style
This solid brass air gap cover is engineered for longevity with a design that resists water stains and maintains its appearance over time. A 4.8 rating highlights customer satisfaction with its sturdy construction and the brushed nickel finish that offers a sophisticated premium look.
Pros
- Long term durability
- Easy to clean
- Flush aesthetic look
- Effective backflow prevention
Cons
- Replacement cap only
- Check existing fit
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The skirted design covers the entire air gap tubing providing a seamless transition from the cap to the countertop or sink deck. This design detail not only enhances aesthetics but also helps prevent paint peeling by managing water vapor effectively on the surface.
One consideration is that this item is sold as a replacement cap only so you must ensure your existing air gap body is compatible with its dimensions. The standard size of 1.8 inches fits most models but checking your current setup is essential before ordering.
For those seeking a high end upgrade that combines style and substance this cover is a top recommendation. It is particularly well suited for modern kitchens where clean lines and durable materials are priorities.
Seamless Aesthetic Design
The skirted cover ensures a flush installation that hides mechanical tubing for a sleek and professional appearance.
Long Term Durability
Solid brass construction combined with a stain resistant finish ensures the unit stays looking new for years without corrosion.
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7. Dishwasher Air Gap Cover Black Only Matte – Best Matte Finish
Dishwasher Air Gap Cover Black only, Skirted, Replacement Black air gap dishwasher,Solid Brass,Matte Black Finish
Matte black finish
Solid brass construction
Eight color options
Skirted cap style
This matte black air gap cover is designed for homeowners who want to coordinate their sink accessories with darker faucets and fixtures. Rated at 4.7 stars it is praised for its solid brass build that resists corrosion and rust ensuring reliable performance in various environments.
Pros
- Matte black option
- Durable brass material
- Complements dark fixtures
- Classic design look
Cons
- Replacement cap only
- Specific color match
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The classic and sensible styling of the skirted cap adds a refined touch to the kitchen while the matte finish provides a modern contrast to polished metals. It installs flush to the sink deck or countertop for a clean look that enhances the overall aesthetic of the area.
Since it is a replacement cap only buyers should verify that their existing air gap body matches the standard dimensions for a proper fit. The matte black finish is durable and resists fingerprints better than glossy options keeping it looking neat with minimal effort.
This product is an excellent choice for those updating their kitchen to a darker or industrial design theme. It offers a reliable and stylish solution to upgrade an old or outdated air gap cap.
Matte Black Appeal
The matte black finish is perfect for coordinating with dark kitchen fixtures providing a sophisticated and modern look.
Classic and Sensible
The design complements any home decor with a timeless look that does not go out of style quickly.
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8. Prime-Line MP53045 Stamped Steel Cover – Most Simple
Prime-Line MP53045 Dishwasher Air Gap Cover, Stamped Steel, Chrome Plated Finish
Stamped steel material
Chrome plated finish
Push on installation
Single pack only
The Prime-Line MP53045 air gap cover offers a simple and effective way to vent air or water from your dishwasher with minimal fuss. With a 4.5 rating it is valued for its ease of installation and ability to fit over most standard air gap units.
Pros
- Push on install
- Fits most gaps
- Simple design
- Affordable cost
Cons
- Single pack only
- Basic steel build
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Constructed from stamped steel with a chrome plated finish this cover provides a basic level of durability and a clean look. The push on installation means no special tools are required making it an accessible option for quick replacements or temporary fixes.
It is important to note that this unit is sold as a single pack which may not offer the best value if you need multiple units. However for a straightforward replacement where budget is a concern this model delivers reliable function without complexity.
Homeowners who prioritize simplicity and ease of use will find this cover a practical choice. It serves the essential function of an air gap cover without unnecessary features or high costs.
Simple Push On Install
The design allows for easy installation without tools making it a hassle free solution for standard replacements.
Fits Most Units
Designed to work with a wide range of dishwasher air gap sizes ensuring compatibility with most existing setups.
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9. KRAUS Dishwasher Air Gap Matte Black – Best Color Variety
KRAUS Dishwasher Air Gap in Matte Black
Solid brass cover
Premium corrosion finish
ABS plastic body
Universal design fit
The KRAUS Dishwasher Air Gap in Matte Black brings high quality construction and a premium look to your kitchen setup. Rated at 4.8 stars it is recognized for its solid brass cover that ensures reliable performance and a durable corrosion resistant finish.
Pros
- High durability
- Matte black option
- Code compliance
- One year warranty
Cons
- Specific color choice
- Standard installation
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This model features a universal design compatible with all dishwashers on the market making it a versatile choice for many homes. The matte black finish is both stylish and practical as it hides fingerprints and smudges while complementing dark kitchen fixtures.
It includes a plastic body with a pre drilled hole size of 1.5 inches which is standard for most installations. While the matte black finish is distinct it is part of a broader range of colors available if you prefer a different shade.
For those seeking a reliable and aesthetically pleasing air gap this model delivers both form and function. It is a solid investment for homeowners who want a long lasting solution that looks great in any kitchen.
Versatile Universal Design
Compatible with all dishwashers on the market ensuring you do not need to worry about compatibility issues during installation.
Premium Corrosion Resistance
The finish is designed to resist corrosion and rust ensuring the unit looks good and functions well for a long time.
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10. Dishwasher Air Gap Cover Matte Black Replacement Kit – Best Complete Kit
Dishwasher Air Gap Cover, Dishwasher Air Gap Cap for Kitchen Sink, Solid Brass Dishwasher Overflow Vent Cap Replacement Kit, Matte Black
High end finish
Curved top design
Universal fit size
Easy installation kit
This replacement kit provides everything needed to upgrade your air gap with a high end matte black finish that enhances kitchen aesthetics. With a 4.7 rating it is appreciated for its durable brass construction and the convenient all-in-one package that simplifies the replacement process.
Pros
- Complete replacement kit
- High quality brass
- Curved top style
- Matte black finish
Cons
- Size verification needed
- Specific kit required
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The curved top design helps prevent water vapor buildup which protects the area from paint peeling and maintains a clean appearance over time. It fits most kitchen sinks and dishwashers with standard dimensions ensuring broad compatibility for most users.
As a replacement kit you will need to confirm that your current plumbing setup matches the required diameters for the air gap pipes. However the included escutcheon ensures a flush installation that covers the entire body for a polished look.
If you want a complete and stylish upgrade without sourcing parts separately this kit is an excellent option. It balances quality materials with practical design to deliver a seamless and lasting solution.
All-In-One Convenience
The kit includes all necessary components for a quick and complete installation without needing extra parts from other sources.
High End Aesthetics
The matte black finish and curved top design provide a sophisticated look that elevates the appearance of your sink area.
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Buying Guide – How to Choose the Best Air Gap for Dishwasher
Selecting the right air gap involves considering material quality, design compatibility, and installation requirements to ensure it meets local plumbing codes and your aesthetic needs.
Material Construction
Most air gap covers are made from solid brass or stainless steel for durability and corrosion resistance. Look for units with high quality materials that can withstand exposure to moisture and cleaning agents without degrading.
Solid brass and stainless steel offer the longest lifespan and best resistance to rust making them ideal for long term use in damp kitchen environments.
Design and Finish
Consider the finish of the air gap cover to ensure it matches your sink and faucet style. Options like polished chrome, brushed nickel, and matte black allow you to coordinate with your existing hardware for a cohesive look.
Choose a finish that not only looks good but also resists fingerprints and water spots to keep your sink area clean with minimal effort.
Installation Requirements
Check the dimensions of the air gap body and cap to ensure they fit your existing sink hole and plumbing setup. Most units require a 1.5 inch hole but variations exist so measuring before buying prevents compatibility issues.
Proper installation is key to preventing leaks so follow the manufacturer instructions and ensure all connections are secure and sealed correctly.
Code Compliance
Many states require dishwasher air gaps to be installed according to local plumbing codes. Ensure the model you choose meets these standards to avoid potential issues during home inspections or future sales.
Look for units that are explicitly labeled as code compliant to guarantee they meet regulatory requirements for your region.
Aesthetic Integration
An air gap with a skirted or flush design can blend seamlessly with your countertop for a cleaner look. This style hides the plumbing components and creates a unified appearance with your sink deck.
Prioritize designs that cover the entire body of the air gap to achieve a polished and professional finish in your kitchen.
Maintenance and Care
Some finishes require more care than others to maintain their appearance over time. Opt for materials that are easy to clean and resistant to staining to reduce maintenance efforts.
Regular cleaning with mild soap and water can keep your air gap looking new and functioning effectively for years.
Brand Reputation
Choosing a reputable brand can provide assurance of quality and better customer support if issues arise. Look for brands with positive reviews and a history of reliable products.
Established manufacturers often offer warranties and reliable parts which can save you money and hassle in the long run.
Budget Considerations
Air gap covers range in price from basic plastic options to premium solid brass units. Determine your budget based on how important aesthetics and long term durability are to your project.
Investing a bit more in a higher quality unit can often pay off with better performance and a longer service life.
How to Use and Care for Your Air Gap for Dishwasher
To use your dishwasher air gap properly ensure it is installed upright with the cap securely in place. This position allows air to escape during drainage and prevents wastewater from backing up into the dishwasher.
Clean the air gap cover regularly with a damp cloth to prevent buildup of grime or food particles that could clog the vent. Avoid using abrasive cleaners that might damage the finish or scratch the surface.
Periodically check the connections and hoses connected to the air gap for signs of wear or leaks. Tighten any loose fittings and replace damaged parts promptly to maintain proper function and prevent water damage.
Frequently Asked Questions
What is the purpose of a dishwasher air gap?
A dishwasher air gap prevents contaminated water from backing up into your dishwasher during the drainage cycle. It creates a physical barrier between your dishwasher drain line and your household plumbing to avoid cross contamination.
Do I need to install a dishwasher air gap?
Many states require air gaps to be installed for dishwasher units to comply with local plumbing codes. Even if not required it is a good practice to protect your clean dishes from potential contamination.
Can I replace just the cap of an existing air gap?
Yes, you can often replace just the cap if the body of the air gap is still functional and compatible with your new cap. Be sure to check dimensions and fit before purchasing a replacement part.
Why is my dishwasher air gap leaking?
Leaks often occur when the drain line is clogged or connected improperly causing water to back up through the air gap. Clearing the blockage or reseating the hose can usually resolve this issue.
How do I clean a dishwasher air gap?
You can clean an air gap by removing the cap and flushing it with water to remove any debris. Use a small brush to clear out the internal tubes if they appear obstructed.
What finishes are available for dishwasher air gaps?
Common finishes include polished chrome, brushed nickel, stainless steel, and matte black. These options allow you to match your sink and faucet for a cohesive kitchen design.
Are air gaps required for all dishwashers?
Not all areas require air gaps and some models use high loops instead. Check your local plumbing code to determine if an air gap is mandatory for your specific installation.
How long does a dishwasher air gap last?
A well installed and maintained air gap can last for many years without needing replacement. Metal components like brass and stainless steel are particularly durable in moist environments.
Final Thoughts on Choosing the Best Air Gap for Dishwasher
Choosing the right dishwasher air gap depends on your budget aesthetic preferences and local plumbing requirements. The models in this guide offer a range of options from budget friendly plastic units to premium solid brass replacements.
Prioritize quality materials and proper fit to ensure your dishwasher drains safely and efficiently without leaks or backups. A well chosen air gap will protect your dishes and kitchen from potential plumbing issues for years to come.
Remember to verify current availability and specifications before making your final decision as product details can change over time. Take the time to measure your existing setup and compare options carefully to find the best match.