Plastic Dishwasher Air Gaps are designed to prevent backflow and ensure proper dishwasher drainage, featuring a 5/8 in. O.D. inlet and 7/8 in. O.D. outlet for compatibility with standard dishwasher hoses. Their durable plastic bodies are complemented by decorative caps that seamlessly matching existing sink hardware for a cohesive kitchen aesthetic. Dearborn is known for providing superior quality and products designed with the plumber in mind.