COMPATIBILITY: These repair kits are compatible with for frost-free sillcocks. WHAT IS INCLUDED: This kit includes replacement vacuum breaker parts for frost-free sillcock valves. DESIGN: This vacuum breaker repair kit features a cap plunger and an O-ring. VACUUM BREAKER REPAIR KIT: This repair kit prevents water from siphoning back into the potable water supply. EASY TO USE: This vacuum breaker assembly features intuitive parts which are easy to operate., Weight: 0.0661386786 Pounds, Manufacturer: Wesafrae