Westbrass 1-3/4 in. Air Gap Kit with Skirted Brass Cap in Matte Black

The Westbrass air gap protects potable water from contamination by preventing dirty dishwasher water from overflowing into your main water lines, as required by code in many States. Featured with a cap available in a variety of finishes, the Westbrass brand is a stylish alternative to complement your other decorative fixtures.