EZ-FLO 4499 Eastman Cd-3 Copper Air Gap MATERIAL: Durable, High-Quality Copper Air Gap with Chrome Finish Cap; ideal for long-lasting performance COMPATIBILITY: For Dishwasher and Disposer Installation BENEFITS: This air gap hardware is designed to keep kitchen pipes free of dirt by preventing wastewater backflow ADJUSTABLE: The adjustable height of this hardware gives flexibility during installation DESIGNER: The chrome metal finished cap accentuates the entire look for a modern and classy touch