Westbrass Plastic Air Gap, 2 Pack, Polished Chrome, D200P-CP-PK
4.6Editor score
Plastic body included
Two pack value set
Standard polished chrome finish
In this guide
A dishwasher air gap is a crucial component that prevents wastewater from backing up into your machine, ensuring your dishes remain clean and sanitary during every cycle.
We compared ten highly rated models based on material quality, design aesthetics, ease of installation, and compliance with plumbing codes to find the most reliable options for homeowners.
Each pick highlights specific strengths and features to help you decide quickly, though keep in mind that pricing and availability may shift frequently across online retailers.
Top 3 Picks for Best Air Gap for Dishwasher
KRAUS Dishwasher Air Gap in Spot Free All-Brite Stainless Steel, KAG-1SFS
4.8Editor score
Solid brass cover finish
Corrosion resistant coating
Universal dishwasher compatibility
Dishwasher Air Gap Cover, Solid Brass Dishwasher Overflow Vent Cap Replacement Kit, Brushed Nickel
4.7Editor score
High end brushed nickel
Curved top design
Universal fit size
Top 10 Best Air Gap for Dishwasher in 2026 Compared
The following table provides a side-by-side comparison of all ten selected models, highlighting key specifications and features to help you evaluate which option suits your specific kitchen setup best.
ProductsSpecificationsEditor scorePrice
Editor's Choice
KRAUS Stainless Steel Air Gap
Solid brass cover
ABS plastic body
9 inch overall height
Universal design fit
4.8Editor score
Editor's Choice
Silicone Splash Guard 2-Pack
Food grade silicone
Grey or black color
5.12 inch width
4 degree slope drain
4.3Editor score
Best Premium
Solid Brass Brushed Nickel Cover
High quality brass
Durable ABS plastic
Curved top design
1.8 inch diameter
4.7Editor score
Westbrass Plastic Air Gap 2-Pack
Standard cap plastic body
Polished chrome finish
9 inch total height
Two pack value
4.6Editor score
Universal Air Gap Kit Chrome
Solid brass cap
ABS plastic body
Flange included
Seven color options
4.6Editor score
Solid Brass Skirted Nickel Cover
Solid brass core
Brushed nickel finish
Skirted design
1.8 inch diameter
4.8Editor score
Solid Brass Matte Black Cover
Solid brass construction
Matte black finish
Standard size cap
Eight color options
4.7Editor score
Prime-Line Stamped Steel Cover
Stamped steel build
Chrome plated finish
Single pack unit
Push on install
4.5Editor score
KRAUS Matte Black Air Gap
Solid brass cover
ABS plastic body
Matte black finish
Universal design fit
4.8Editor score
Solid Brass Matte Black Cap Kit
High quality brass
Matte black finish
Curved top design
1.8 inch diameter
4.7Editor score
1. KRAUS Air Gap – Best Overall for Durability
KRAUS Dishwasher Air Gap in Spot Free All-Brite Stainless Steel, KAG-1SFS
Solid brass cover
ABS plastic body
Universal design fit
Corrosion resistant
The KRAUS Air Gap stands out as the top choice for homeowners seeking a blend of durability and aesthetics, boasting a 4.8-star rating from satisfied users who appreciate its robust construction.
Pros
- Superior solid brass durability
- Premium corrosion resistant finish
- Complies with plumbing codes
- Clean flush install look
- Includes matching escutcheon
Cons
- Slightly higher price point
- Requires specific hole size
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This model features a solid brass cover paired with a durable ABS plastic body, ensuring it withstands the humid kitchen environment without rusting or fading over time.
While it requires a pre-drilled hole of 1.5 inches, the clean look it provides by installing flush to the sink deck makes the installation effort worthwhile for a professional finish.
If you prioritize longevity and a high-end appearance that matches your kitchen faucet, this KRAUS unit is the most reliable investment for your dishwasher installation.
Premium Material Quality
The solid brass cover ensures superior durability and a high-end appearance that resists corrosion better than standard plastic alternatives found in the market.
Code Compliance
Air gaps are required for dishwasher installations by plumbing codes in many states, and this model meets those standards to keep your home compliant and safe.
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2. Silicone Splash Guard – Best Accessory for Spill Control
2-Pack Dishwasher Air Gap Cover Water Ramp Silicone Splash Guard
Food grade silicone
Grey or black color
5.12 inch width
4 degree slope drain
This silicone splash guard serves as an excellent accessory for existing air gaps, designed to catch drips and direct water flow into the sink to keep your countertops dry.
Pros
- Catches drips effectively
- Reduces counter wiping
- Easy to clean material
- Flexible snug fit
- Includes two color options
Cons
- Not a primary air gap
- Soft material may deform
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Made from 100% food-grade silicone, it is safe, odorless, and durable, offering a 4-degree slope that helps water drain efficiently without pooling or splashing elsewhere.
While it is not a replacement for the air gap itself, its ability to reduce the need for frequent wiping makes it a practical addition for busy kitchens.
Choose this product if you need a simple solution to manage overflow and splashing around your sink area without replacing your current plumbing hardware.
Efficient Drainage
The 4-degree slope helps water drain better from the guard, ensuring no more wet mess behind the sink and keeping your area clean and tidy.
Aesthetic Appeal
Available in grey or black, this accessory adds a touch of elegance to your kitchen decor, blending seamlessly with your home style for a polished look.
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3. Brushed Nickel Brass Cap – Best Design and Finish
Dishwasher Air Gap Cover, Dishwasher Air Gap Cap for Kitchen Sink, Solid Brass Dishwasher Overflow Vent Cap Replacement Kit, Brushed Nickel
High quality brass
Durable ABS plastic
Curved top design
1.8 inch diameter
This solid brass cap offers a premium brushed nickel finish that enhances the visual appeal of any kitchen while preventing wastewater from backing up into your dishwasher.
Pros
- High-end brushed nickel look
- Prevents water vapor buildup
- Universal fit size
- Easy hassle-free install
- Covers entire gap body
Cons
- Replacement only not full kit
- May need checking fit
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The curved top design is engineered to prevent water vapor buildup, reducing the risk of paint peeling and maintaining a flawless appearance over time.
With a diameter of 1.8 inches and a skirted design, it installs flush with the sink deck to cover the entire air gap body for a clean and sensible design.
Ideal for homeowners looking to upgrade the look of their existing setup, this cap combines elegant styling with the durability needed for long-term kitchen use.
Elegant Stylish Design
The high-end brushed nickel finish not only enhances the visual appeal of your kitchen but also complements any home decor with its classic and sensible design.
Efficient Backflow Prevention
Designed to prevent wastewater from backing up into your dishwasher, this air gap kit effectively keeps your dishes clean, ensuring a hygienic kitchen environment.
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4. Westbrass 2-Pack – Best Value for Money
Westbrass Plastic Air Gap, 2 Pack, Polished Chrome, D200P-CP-PK
Standard cap plastic body
Polished chrome finish
9 inch total height
Two pack value
The Westbrass 2-Pack offers a cost-effective solution for homeowners needing multiple units, featuring a standard polished chrome finish that suits most kitchen sink setups.
Pros
- Affordable two pack set
- Polished chrome finish
- Standard easy fit
- Includes plastic body
- Reliable basic function
Cons
- Plastic body may scratch
- Exposed lip after install
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Each unit includes a plastic body with a cap diameter of 1-5/8 inches and an overall height of 9 inches, providing a reliable barrier against wastewater backup.
While the cap leaves the lip of the air gap body exposed when installed, it delivers consistent performance at a fraction of the price of premium metal options.
This is the ideal choice for budget-conscious buyers who need a functional and code-compliant air gap without paying extra for decorative finishes or complex features.
Standard Fit
This model features a standard air gap cap with a plastic body included, ensuring it fits most dishwasher installations without requiring custom modifications.
Two Pack Value
Getting two units in one pack allows you to have a spare or replace multiple gaps in different areas, maximizing value and convenience for your plumbing needs.
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5. Universal Air Gap Kit – Best Complete Replacement
Dishwasher Air Gap Kits with Dishwasher Air Gap Cover and Matching Escutcheon
Solid brass cap
ABS plastic body
Flange included
Seven color options
This kit provides a complete solution with a solid brass cap and matching escutcheon, designed to fit most dishwashers and prevent wastewater from backing up effectively.
Pros
- Full kit with escutcheon
- Durable brass and plastic
- Multiple color options
- Universal cap fit
- Easy to install
Cons
- May not match all faucets
- Basic chrome finish
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The classic design installs flush to the sink deck or countertop for a clean look, ensuring that the air gap body is fully covered for a seamless appearance.
Built to last with durable ABS plastic and solid brass construction, it resists corrosion and rust while offering years of reliable performance for daily household use.
If you need a replacement that covers the entire air gap body and comes with various color options to match your sink, this kit offers great value and functionality.
Universal Air Gap
The air gap cap with flange and plastic body included fits most of dishwashers, preventing wastewater from backing up into your dishwasher and eliminating contamination risks.
Built To Last
Includes durable ABS plastic body and solid brass construction cap for maximum durability, resistant to corrosion and rust, offering years of reliable performance.
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6. Skirted Brass Cover – Best Aesthetic Upgrade
Dishwasher Air Gap Cover for Kitchen, Solid Brass Air Gap Cap with Skirted Design
Solid brass core
Brushed nickel finish
Skirted design
1.8 inch diameter
This solid brass cover combines durability with a brushed nickel finish, engineered to prevent dirty water from flowing back into the dishwasher and avoiding cross-contamination.
Pros
- Solid brass for longevity
- Skirted design covers tubes
- Stain resistant surface
- Effortless installation
- Prevents paint peeling
Cons
- Replacement cap only
- Check height before buying
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The skirted design covers the entire air gap tubing, installing flush with the countertop for a clean look that matches your kitchen ideally without exposing ugly pipes.
Curved top prevents water accumulation, avoiding paint peeling and ensuring durability, while the smooth surface allows for easy cleaning and routine maintenance of blockages.
Homeowners seeking an effortless upgrade to their existing air gap will appreciate this cover for its secure fit, removable design, and high-quality corrosion-resistant materials.
Solid Brass Construction
Engineered for longevity, this air gap cover combines a solid brass core with a brushed nickel finish, ensuring excellent corrosion resistance and rust prevention.
Skirted Design
This dishwasher overflow cap is designed with a skirted cap, covering the entire air gap tubing to provide a clean look that matches your kitchen ideally.
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7. Matte Black Brass Cap – Best for Modern Styles
Dishwasher Air Gap Cover Black only, Skirted, Replacement Black air gap dishwasher,Solid Brass,Matte Black Finish
Solid brass construction
Matte black finish
Standard size cap
Eight color options
This matte black air gap cap is designed to fit most brand air gap bodies, offering a classic and sensible styling that complements any home decor.
Pros
- Matte black finish
- Solid brass build
- Skirted design
- Easy installation
- Multiple color options
Cons
- Replacement cap only
- Not full air gap kit
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Made with solid brass construction for maximum durability, it is resistant to corrosion and rust, ensuring reliable performance and a longer service life for your kitchen.
The skirted design covers the entire air gap body and installs flush to the sink deck for a clean look, making it a stylish replacement for worn-out hardware.
Choose this black option if you want to match a modern kitchen sink or faucet, as it provides a durable and affordable upgrade for your dishwasher setup.
Universal Standard Size
Standard air gap cap only fits most of brand’s air gaps bodies, ensuring compatibility without requiring custom measurements or extensive modification work.
Built To Last
Solid brass construction cap for maximum durability, resistant to corrosion and rust, offering years of reliable performance and longer service life.
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8. Prime-Line Steel Cover – Best Simple Replacement
Prime-Line MP53045 Dishwasher Air Gap Cover, Stamped Steel, Chrome Plated Finish (Single Pack)
Stamped steel build
Chrome plated finish
Single pack unit
Push on install
The Prime-Line cover is constructed from stamped steel with a chrome plated finish, providing a durable shield for your dishwasher air gap at a reasonable cost.
Pros
- Constructed from stamped steel
- Easy push on install
- Chrome plated finish
- Fits most air gaps
- Single pack affordable
Cons
- Steel may rust over time
- Basic design features
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Designed to fit over most air gaps for dishwashers, this cover offers easy push on installation over the air gap of your dishwasher without needing specialized tools.
Each package contains one air gap cover, making it suitable for single replacements where you need a quick fix to restore functionality to your sink area.
This is a straightforward option for those needing a simple, no-frills cover that vents air or water effectively from your dishwasher system.
Easy Push On Installation
Easy push on installation over the air gap of your dishwasher allows for a quick setup without requiring complex tools or professional plumbing help.
Fits Most Gaps
Designed to fit over most air gaps for dishwashers, this cover ensures broad compatibility with standard plumbing setups in typical home kitchens.
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9. KRAUS Matte Black – Best Premium Matte Finish
KRAUS Dishwasher Air Gap in Matte Black, KAG-1MB
Solid brass cover
ABS plastic body
Matte black finish
Universal design fit
This KRAUS model combines durability with a sleek matte black finish, preventing wastewater from backing up into your dishwasher and eliminating the risk of contaminating your clean dishes.
Pros
- Superior solid brass cover
- Premium matte finish
- Includes 1 year warranty
- Complies with plumbing codes
- Clean flush install look
Cons
- Higher price point
- Requires specific hole size
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The air gap kit includes a durable ABS plastic body and a solid brass cover for a lifetime of reliable performance, ensuring high-end appearance and superior durability.
With a 1 year warranty and satisfaction guaranteed support, this product offers peace of mind for buyers concerned about longevity and customer service issues.
It is an excellent choice for those seeking a premium look that complements dark kitchen faucets while maintaining the functional integrity required by plumbing codes.
Premium Finish
Premium corrosion-resistant finish will not dull or fade over time, ensuring your kitchen maintains a fresh and stylish look for years to come.
Code Compliance
Air gaps are required for dishwasher installations by plumbing codes in many states, and this model ensures your setup is compliant and safe.
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10. Matte Black Brass Kit – Best Overall Matte Option
Dishwasher Air Gap Cover, Dishwasher Air Gap Cap for Kitchen Sink, Solid Brass Dishwasher Overflow Vent Cap Replacement Kit, Matte Black
High quality brass
Matte black finish
Curved top design
1.8 inch diameter
This replacement kit features a high-quality brass cap with a matte black finish, designed to prevent wastewater from backing up into your dishwasher effectively.
Pros
- High quality brass build
- Matte black finish
- Curved top design
- Universal fit size
- Hassle-free installation
Cons
- Replacement kit only
- Check compatibility first
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The kit includes a durable ABS plastic body and a solid brass cover that enhances the visual appeal of your kitchen while ensuring corrosion resistance.
A curved top design prevents water vapor buildup, reducing the risk of paint peeling and maintaining a flawless appearance over time for your sink setup.
Ideal for those looking for a stylish yet functional upgrade, this unit combines easy installation with classic and sensible design that complements any home decor.
Premium Brass Construction
The dishwasher air gap cap is made from high-quality brass, while the air gap body is crafted from durable ABS plastic for exceptional durability.
Easy Installation
Enjoy a hassle-free installation process with this air gap kit, designed for easy setup and requiring no special tools for quick secure installation.
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Buying Guide – How to Choose the Best Air Gap for Dishwasher
Choosing the right air gap involves considering material quality, design style, and installation requirements to ensure it fits your kitchen layout and plumbing needs.
Material Quality
Look for solid brass covers and durable ABS plastic bodies to ensure resistance to corrosion and rust over time in a humid kitchen environment.
High-quality materials extend the lifespan of the air gap and maintain its appearance without fading or dulling quickly.
Finish and Design
Select a finish such as brushed nickel, matte black, or polished chrome that complements your existing kitchen faucet and sink for a cohesive aesthetic.
Skirted designs offer a cleaner look by covering the air gap tubing while preventing water vapor buildup that might damage the surrounding area.
Installation Requirements
Check the pre-drilled hole size requirement, typically around 1.5 inches, to ensure the unit fits your countertop or sink deck without modification.
Some models require an escutcheon to cover the gap body flush, while others may leave the lip exposed, so consider your preference for aesthetics.
Code Compliance
Ensure the air gap meets local plumbing codes, as many states require these devices to prevent wastewater from backing up into your dishwasher.
Compliant units provide peace of mind during home inspections and ensure you are following safety standards for your plumbing system.
Ease of Cleaning
Choose models with smooth surfaces that are stain-resistant to make routine cleaning easy and prevent buildup of grime or water spots.
Removable designs simplify maintenance and allow you to clear blockages quickly without needing professional plumbing assistance.
Compatibility
Universal fit models are generally compatible with most dishwashers on the market, ensuring you do not need custom adapters or parts.
Verify the diameter and height specifications match your existing setup to avoid compatibility issues during installation or usage.
How to Use and Care for Your Air Gap for Dishwasher
Install the air gap according to local plumbing codes, ensuring it sits flush on the sink deck or countertop with all connections secure.
Regularly inspect the cap and cover for signs of wear, rust, or debris that might obstruct proper water flow or ventilation.
Clean the exterior surfaces with mild soap and water, avoiding harsh chemicals that could damage the finish or corrode the metal parts.
Frequently Asked Questions
Do I really need an air gap for my dishwasher?
Yes, many plumbing codes require an air gap to prevent wastewater from backing up into your dishwasher and contaminating your clean dishes. It acts as a critical barrier that keeps your system sanitary and compliant.
What happens if my dishwasher air gap is clogged?
If clogged, the air gap may overflow or leak water onto your countertop during a cycle. Regular maintenance and inspection can prevent this issue and ensure smooth operation.
Can I install an air gap myself?
Most models are designed for DIY installation without special tools, but you should check local codes and measure your existing setup to ensure a proper fit before proceeding.
How do I choose the right finish for my kitchen?
Match the finish of your air gap to your kitchen faucet and sink for a coordinated look. Popular options include brushed nickel, matte black, and polished chrome.
Are dishwasher air gap covers replaceable?
Yes, many models allow you to replace just the cap or cover if it gets damaged or you want to update the style without changing the entire plumbing fixture.
Why is my air gap leaking?
Leakage can be caused by a blockage in the drain line or improper installation. Check for clogs and ensure all hoses are connected correctly to prevent spills.
Final Thoughts on Choosing the Best Air Gap for Dishwasher
We have reviewed ten top-rated models ranging from solid brass covers to budget plastic options, each offering unique benefits for durability and design.
Prioritize material quality and code compliance to ensure your dishwasher remains safe and efficient over the long term while matching your kitchen aesthetics.
Prices and availability may change frequently, so check current listings and specifications before making your final purchase decision today.