Connects cast iron, plastic, copper, steel & lead pipe in drainage, sewer & ventilation systems, No special tools, gluing, threading or soldering required & tolerant to pipe misalignment, Strong, durable, leak-free and suitable for above or under ground usages, For new installation, repair & alteration., Allows the waste from the dishwasher flow into the drain pipe., Hub x Hub x Barb, 1 1/2" x 11/2" x 1/2"