When you need a replacement part for repair or maintenance of a flush valve, trust Zurn for genuine, reliable parts. Part no. P6000-TPO is an exposed trap primer assembly for AquaVantage® and AquaFlush® water closets with a standard 11 ½-inch rough-in and a top spud connection. This complete assembly includes a 1 ½-inch flush tube with a trap primer collar, a 3/8 x 12-inch supply tube, a spud coupling, flange, chemical-resistant GO BLUE® vacuum breaker with nut, and a wall escutcheon. Constructed of durable, dezincification-resistant chrome-plated cast brass, the trap primer maintains a water seal in drains in order to keep gases from coming back up through the drain. Zurn replacement parts and retrofit kits can be used to upgrade any diaphragm type flush valves.