KRAUS KAG-1 Dishwasher Air Gap. Keep your dishwasher free from contamination with the KRAUS Air Gap kit. Required by plumbing codes in many states, an air gap is the best way to prevent your dishwasher from being flooded with dirty water. This kit includes an air gap body made of durable ABS plastic and a solid brass cap built for maximum durability with a high-end feel. The cover installs flush to the sink deck or countertop, creating a clean look. The cover comes in a variety of corrosion-resistant finishes to match your kitchen faucet. Detailed instructions are included for easy installation and worry-free use. Finishes: Dimensions: Warranty and certification: NOTE: Due to their reflective nature, the appearance of gold finishes can vary depending on the lighting in your room. Warmer or cooler light, as well as hues of surrounding objects, can affect the way it looks. Actual appearance when installed in the home environment may differ slightly from the images shown.