Westbrass Plastic Air Gap, 2 Pack, Polished Chrome
4.6Editor score
Affordable two pack value
Standard plastic body construction
Chrome polished finish look
A dishwasher air gap is a critical plumbing component that prevents wastewater from backing up into your appliance. Installing a reliable unit ensures your dishes stay clean and your kitchen remains hygienic throughout daily use.
We compared ten highly rated air gap units and covers based on durability, design, and installation ease. Our analysis focuses on materials like brass and plastic to help you find the most durable solution for your sink.
Each pick highlights key features and real user feedback to guide your decision. Keep in mind that product availability and specific details may change over time, so verify current specs before purchasing your final choice.
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 option
Universal fit for all dishwashers
Dishwasher Air Gap Cover, Solid Brass Overflow Vent Cap
4.8Editor score
Solid brass core build
Skirted design for aesthetics
Brushed nickel finish option
Top 10 Best Air Gap for Dishwasher in 2026 Compared
This side-by-side comparison highlights the key specifications and features of each unit to help you identify the best match for your sink deck and plumbing configuration.
ProductsSpecificationsEditor scorePrice
Editor's Choice
KRAUS Stainless Steel Air Gap
Solid brass cover finish
Nine inch overall height
Universal dishwasher compatible design
Corrosion resistant coating
4.8Editor score
Editor's Choice
Dishwasher Air Gap Cover Splash Guard
Food grade silicone material
Two color choices included
Splash guard overflow ramp
Universal fit accessory cover
4.3Editor score
Best Premium
Dishwasher Air Gap Cover Brushed Nickel
Premium brass construction cap
Brushed nickel finish option
Curved top design style
Universal fit standard size
4.7Editor score
Westbrass Plastic Air Gap Chrome
Standard plastic body cap
Polished chrome finish look
Two pack value option
Standard height dimensions
4.6Editor score
Dishwasher Air Gap Kits Polished Chrome
Solid brass cap build
Seven color options available
Escutcheon matching included
Universal air cap kit
4.6Editor score
Dishwasher Air Gap Cover Brushed Nickel
Solid brass core material
Brushed nickel finish style
Skirted design cover
Standard universal dimensions
4.8Editor score
Dishwasher Air Gap Cover Black
Solid brass construction cap
Matte black finish option
Eight color choices available
Universal standard size fit
4.7Editor score
Prime-Line Dishwasher Air Gap Cover
Stamped steel construction
Chrome plated finish look
Push on installation type
Single pack coverage
4.5Editor score
KRAUS Matte Black Air Gap
Solid brass cover build
Matte black finish style
Corrosion resistant finish
Universal dishwasher design
4.8Editor score
Dishwasher Air Gap Cover Matte Black
Premium brass cap build
Matte black finish option
Curved top design style
Universal fit standard size
4.7Editor score
1. KRAUS Dishwasher Air Gap – Best Overall for Durability
KRAUS Dishwasher Air Gap in Spot Free All-Brite Stainless Steel
Solid brass cover top
ABS plastic body build
Nine inch height total
Corrosion resistant coating
This KRAUS air gap unit stands out for its premium build quality and reliable performance. With a high rating, it offers a solid brass cover that ensures long-term durability while preventing wastewater backflow effectively.
Pros
- High end appearance finish
- Durable solid brass cover
- Universal fit design
- One year warranty
- Complies with plumbing codes
Cons
- Premium price point
- Requires specific hole size
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The unit features a corrosion-resistant finish that complements modern kitchen aesthetics. Its universal design makes it compatible with most dishwashers on the market, simplifying the installation process for homeowners and plumbers alike.
While the price is higher than basic models, the included one-year warranty and superior materials justify the investment. The only minor trade-off is the requirement for a pre-drilled hole of a specific size.
We recommend this unit for homeowners seeking a blend of style and function. It is an excellent choice for those who value high-end finishes and reliable backflow prevention in their kitchen setup.
Premium Material Quality
The solid brass cover provides superior durability and a high-end look that resists tarnishing over time.
Code Compliance
This unit meets plumbing code requirements for air gap installation in many states, ensuring legal compliance.
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2. Dishwasher Air Gap Cover Splash Guard – Best Accessory Add-On
Dishwasher Air Gap Cover Water Ramp Silicone Splash Guard
Food grade silicone material
Two color choices set
Four degree slope design
Universal accessory fit
This splash guard accessory is designed to catch drips and direct water flow into the sink efficiently. It is made from food-grade silicone, ensuring safety and ease of cleaning for daily kitchen maintenance.
Pros
- Prevents countertop mess
- Easy to clean
- Flexible silicone build
- Affordable accessory price
- Comes in two colors
Cons
- Not a full unit
- Silicone may wear over time
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The unit features a four-degree slope that helps water drain better, reducing wet mess behind the sink. It fits snugly around most air gap cover diameters, making it a versatile addition to any kitchen sink area.
While it is not a full air gap unit, it effectively manages overflow and splash issues. The main trade-off is that silicone may eventually wear down, but its low cost makes replacement easy.
We recommend this guard for anyone dealing with minor leaks or splashes around their existing air gap. It is an affordable and practical solution to keep your countertop dry and clean.
Splash Management
The ramp design catches water and directs it into the sink, preventing droplets from spreading across the counter.
Material Safety
Constructed from 100% food-grade silicone, this accessory is safe and odorless for kitchen use.
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3. Dishwasher Air Gap Cover Brushed Nickel – Best Classic Style
Dishwasher Air Gap Cover Brushed Nickel
Solid brass cap build
ABS plastic body core
Brushed nickel finish
Skirted design cover
This replacement kit offers an elegant brushed nickel finish that enhances the visual appeal of your kitchen. It features a curved top design that helps prevent water vapor buildup and maintains a flawless appearance.
Pros
- Elegant nickel finish
- Durable brass construction
- Curved top prevents buildup
- Easy installation process
- Universal fit standard size
Cons
- Replacement only not kit
- Requires existing body
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The unit combines a solid brass cap with a durable ABS plastic body for exceptional corrosion resistance. Its skirted design and matching escutcheon ensure a clean look by covering the entire air gap body effectively.
Although it is a replacement kit, the installation is straightforward and requires no special tools. The main limitation is that you must have a compatible body for it to function as a full unit.
We recommend this cover for homeowners looking to upgrade the aesthetics of their existing setup. It is a perfect choice for those who want a classic look without replacing the entire plumbing assembly.
Aesthetic Design
The brushed nickel finish and curved top style blend seamlessly with modern and traditional kitchen decor.
Functional Build
Made from high-quality brass and durable ABS plastic, it ensures longevity and resistance to rust.
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4. Westbrass Plastic Air Gap – Best Value for Two Units
Westbrass Plastic Air Gap, 2 Pack, Polished Chrome
Standard plastic body cap
Two pack value set
Polished chrome finish
Standard height dimensions
This two-pack set offers excellent value for homeowners needing replacements or spare units. The plastic body and chrome finish provide a reliable and affordable option for standard dishwasher air gap installations.
Pros
- Cost effective two pack
- Standard dimensions fit
- Chrome finish appeal
- Simple design
- Lightweight installation
Cons
- Plastic may degrade slower
- Basic design only
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Each unit features standard dimensions that fit most common sink setups. The polished chrome finish adds a touch of elegance without increasing the cost, making it a practical choice for budget-conscious buyers.
While the plastic construction is less durable than brass, it is sufficient for typical household use. The trade-off is that it may require replacement sooner than metal units in harsh environments.
We recommend this pack for those on a tight budget or needing spares. It delivers reliable performance at a low price point, ensuring you have a working unit ready when needed.
Cost Efficiency
Buying a two pack ensures you have a spare ready for future needs while keeping immediate costs low.
Standard Compatibility
With standard height and cap diameter, this unit fits most traditional kitchen sink installations easily.
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5. Dishwasher Air Gap Kits – Best Color Variety
Dishwasher Air Gap Kits Polished Chrome
Solid brass cap build
Seven color options set
Escutcheon matching included
Universal air cap kit
This kit allows you to choose from seven color options to match your kitchen sink and faucet perfectly. It includes a durable solid brass cap that offers years of reliable performance and resistance to corrosion.
Pros
- Wide color selection
- Solid brass durability
- Includes matching escutcheon
- Classic design style
- Easy to install
Cons
- Basic plastic body
- Limited warranty detail
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The skirted air gap cap covers the entire body for a clean look, complementing any home decor. Installation is hassle-free, making it accessible for DIY enthusiasts without the need for professional tools.
While the body is plastic, the brass cap adds significant durability and visual appeal. The trade-off is that the plastic component might wear out faster in high-usage environments.
We recommend this kit for those prioritizing style and color matching. It provides a versatile solution that fits most dishwashers and offers a polished finish to enhance your kitchen aesthetic.
Design Variety
With seven color choices, you can ensure the air gap blends seamlessly with your existing fixtures.
Solid Build
The solid brass cap ensures a long service life and maintains its appearance against corrosion and rust.
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6. Dishwasher Air Gap Cover Brushed Nickel – Best Premium Replacement
Dishwasher Air Gap Cover Brushed Nickel
Solid brass core material
Brushed nickel finish
Skirted design cover
Standard universal dimensions
This replacement cap combines a solid brass core with a brushed nickel finish for a premium look and feel. It effectively prevents dirty water from flowing back into the dishwasher, ensuring a clean kitchen environment.
Pros
- High quality brass core
- Clean skirted look
- Stain resistant surface
- Effective backflow prevention
- Universal size compatibility
Cons
- Replacement part only
- Check existing height first
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The skirted design covers the entire air gap tubing for a seamless aesthetic that matches your sink. The surface is stain-resistant and easy to clean, simplifying routine maintenance for busy homeowners.
While it is a replacement part, its universal dimensions make it suitable for most standard bodies. The main consideration is verifying the existing hole height to ensure a proper fit before purchase.
We recommend this unit for those seeking a high-quality upgrade for their kitchen setup. Its durable construction and elegant design make it a top choice for longevity and visual appeal.
Durable Construction
The solid brass core provides excellent corrosion resistance and ensures long-term use without fading.
Easy Maintenance
The smooth surface allows for quick cleaning and the removable design simplifies blockage clearing tasks.
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7. Dishwasher Air Gap Cover Black – Best Matte Finish Option
Dishwasher Air Gap Cover Black
Solid brass cap build
Matte black finish style
Eight color choices set
Classic skirted design
This unit offers a sleek matte black finish that is perfect for modern or dark-themed kitchens. It features a solid brass construction cap that provides maximum durability and resistance to corrosion and rust.
Pros
- Modern matte finish
- Solid brass durability
- Complements dark sinks
- Classic design styling
- Easy hassle-free install
Cons
- Replacement part only
- Color match needed
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The skirted design and matching escutcheon ensure a clean look by covering the entire air gap body. It fits most brand air gap bodies, making it a versatile replacement option for various setups.
While the matte finish is stylish, it may require gentle cleaning to maintain its appearance. The main limitation is that it is a replacement part, so you need a compatible body to use it.
We recommend this cover for homeowners looking to match dark fixtures or modern decor. It provides a classic look that enhances your kitchen aesthetic while ensuring reliable function for years.
Modern Style
The matte black finish blends perfectly with contemporary kitchen designs and dark faucet colors.
Solid Build
Constructed from solid brass, this cap offers a longer service life and reliable performance over time.
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8. Prime-Line Air Gap Cover – Best Steel Option
Prime-Line Dishwasher Air Gap Cover
Stamped steel construction
Chrome plated finish
Push on install type
Universal gap fit
This air gap cover is constructed from stamped steel with a chrome plated finish for durability and style. It is designed to fit over most air gaps, providing a secure vent for air and water release.
Pros
- Durable steel build
- Chrome finish appeal
- Easy push on install
- Single pack convenience
- Affordable price point
Cons
- Steel may rust if wet
- Basic functional design
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The push-on installation makes it incredibly easy to install without any special tools. This simplicity is ideal for quick replacements or for those who prefer straightforward DIY projects.
While steel is durable, it can rust if not properly maintained in wet environments. The trade-off is that this unit prioritizes function and ease of use over premium aesthetics.
We recommend this cover for practical users who need a reliable and easy-to-install solution. It is a great budget-friendly option that fits most standard air gaps effectively.
Installation Ease
The push-on design allows for a quick and secure fit, saving time during installation tasks.
Material Choice
Made from stamped steel with chrome plating, it offers a balance of strength and visual appeal.
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9. KRAUS Matte Black Air Gap – Best Full Unit
KRAUS Matte Black Air Gap
Solid brass cover build
Matte black finish
ABS plastic body core
Universal dishwasher design
This KRAUS unit is a complete air gap kit featuring a solid brass cover and durable ABS plastic body. It prevents wastewater from backing up into your dishwasher, eliminating the risk of contaminating your clean dishes.
Pros
- Full unit kit
- Corrosion resistant finish
- High quality materials
- One year warranty
- Universal design compatibility
Cons
- Premium pricing
- Requires specific hole size
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The matte black finish is premium and corrosion-resistant, ensuring it does not dull over time. It includes a one-year warranty and best-in-industry customer support, providing peace of mind for your purchase.
While the price is higher than standard units, the quality and warranty justify the investment. The main consideration is ensuring your pre-drilled hole meets the specific size requirements for installation.
We recommend this unit for those seeking a complete and stylish solution. It is an excellent choice for anyone who values high-end materials and reliable backflow prevention in their kitchen.
Full Kit Value
This unit provides a complete solution with both body and cover included for easy replacement.
Warranty Support
The included one-year warranty ensures satisfaction and provides support if any issues arise.
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10. Dishwasher Air Gap Cover Matte Black – Best Curved Top
Dishwasher Air Gap Cover Matte Black
Solid brass cap build
Matte black finish
Curved top design
Universal fit standard
This replacement kit features a high-end matte black finish that enhances your kitchen visual appeal. The curved top design prevents water vapor buildup, reducing the risk of paint peeling and maintaining a flawless appearance.
Pros
- Elegant matte finish
- Premium brass cap
- Curved top prevents buildup
- Universal fit size
- Easy installation
Cons
- Replacement part only
- Requires compatible body
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Made from premium brass, the cap ensures exceptional durability and corrosion resistance. It fits most kitchen sinks and dishwashers, offering a versatile solution for various plumbing configurations.
While it is a replacement part, the installation is hassle-free and requires no special tools. The main limitation is that you must have a compatible body to use this cap effectively.
We recommend this kit for those looking to update their existing air gap style. It is a perfect choice for anyone who wants a modern look and reliable performance in their kitchen.
Design Detail
The curved top design helps prevent water vapor buildup, keeping your unit looking new longer.
Easy Setup
Designed for easy setup, you can quickly install this cap to your sink with minimal effort.
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Buying Guide – How to Choose the Best Air Gap for Dishwasher
Selecting the right air gap involves considering material, finish, and installation requirements. This guide helps you evaluate key factors to find a model that fits your kitchen and plumbing needs.
Material Quality
Look for air gaps made from durable materials like solid brass or high-quality ABS plastic. Solid brass offers superior corrosion resistance and longevity, while plastic may be more affordable but less durable.
Finish and Style
Choose a finish that matches your kitchen sink and faucet, such as polished chrome, brushed nickel, or matte black. A cohesive look enhances your kitchen aesthetic and ensures the unit blends seamlessly into your space.
Universal Fit
Ensure the air gap is designed to fit most standard sink holes and dishwasher connections. Universal designs simplify installation and reduce the risk of compatibility issues with your existing plumbing.
Installation Requirements
Check the required hole size and height dimensions before purchasing. Some units need a specific pre-drilled hole size, so verifying your sink setup ensures a smooth and correct installation process.
Warranty and Support
Look for products that include a warranty and reliable customer support. A one-year warranty or similar guarantee provides protection against defects and ensures you have help if issues arise.
Code Compliance
Ensure the unit meets local plumbing code requirements for air gaps. Many states require specific standards for air gap installation, and compliance ensures your setup is legal and safe.
Price vs. Value
Balance the cost with the features and durability offered. While premium units may cost more, they often provide better longevity and aesthetics, offering better value over time.
Brand Reputation
Consider choosing a well-known brand with positive customer feedback. Reputable brands often provide consistent quality and reliable support, making it easier to find trustworthy replacements if needed.
How to Use and Care for Your Air Gap for Dishwasher
Install the air gap according to your manufacturer's instructions, ensuring it is securely seated and all connections are tight. This prevents leaks and ensures the unit functions correctly to direct water into the sink.