About This Adaptability: The vacuum breaker replacement kit is compatible with Legend Valve LEG-108-903: used on 4", 6", 8", 10", 12" and 14" T550 and Improved Flow T550A; Frost free spigot nozzles are applied to prevent water from being sucked back into the potable water supply from sump valves, faucets, hose valves, etc Vacuum Breaker Package Contents: The frost free faucet repair kit includes 2 stainless steel cap, 2 body (larger plastic pieces with rubber o ring), and 2 pistons (smaller plastic pieces); It effectively prevents backflow of liquids in the piping system, thus protecting equipment and components inside the piping system from damage Quality Material: The press on cover of the frost free spigot repair kit has replaced the original screw in installation, making it more convenient; Compared to traditional plastic and stainless steel covers, we have upgraded to a plated brass material, making it more robust and durable Installation: The vacuum breaker repair kit's outdoor faucet is simple to install; The flat end of the piston should be facing up in the body and the prongs/teeth of the piston should be facing down towards the valve; Check alignment before tightening; Press on the stainless steel cap to secure the assembly in place Application: The vacuum breaker replacement kit is a common outdoor water supply device that is usually mounted on the exterior wall of a building to provide a source of water, such as watering plants, washing cars, etc Overview Material : Rubber, Stainless Steel Brand : Ceoighe Exterior Finish : Brass Inlet Connection Size : 0.75 Inches Inlet Connection Type : FNPT Outlet Connection Type : FNPT Number of Ports : 2 Outlet Connection Size : 0.75 Inches Manufacturer : Ceoighe