Eastman 40471 Heavy Pattern Air Gaps MATERIAL: This durable air gap pipe fitting is made up of high quality rust resistant plastic for long lasting performance DESIGNER: The brushed nickel cap and blue body accentuates the entire look for a modern and stylish touch COMPATIBILITY: It is an excellent choice for maintaining pipes of dishwashers, disposers, and kitchen sinks BENEFITS: This air gap hardware is designed to keep kitchen pipes free of dirt; protects potable water from contamination by preventing dirty water from backflowing into your main water lines ADJUSTABLE: The adjustable height of this hardware gives the flexibility in installation and allows the wastewater to get pumped out of the dishwasher and carried by a hose to the air gap