【Function】This freeze proof outdoor faucet effectively prevent freezing and bursting, to prevent any water from being siphoned back into your water supply, keeping your pipe safe from freezing in cold weather. It also has a stem to provide enough amount of room to keep the pipe protected. 【1/2in NPT Inlet】 The anti siphon outdoor water faucet with 1/2 NPT male inlet which can be connected to 1/2 thread pipe. simplifies installation by threading, which ensures a leak-free connection, saving time and effort. 【Hose Bibb Design】 The 3/4’’ GHT hose bibb provides a convenient outlet for attaching hoses and other watering accessories. Its ergonomic design facilitates easy attachment and removal of hoses, preventing leaks and reducing wear and tear on the hose connection. 【Material】The frost free outdoor spigot is crafted from lead-free brass, chrome plated, ensuring durability and resistance to corrosion. The use of lead-free brass, making the frost free hose bib safe for potable water applications. 【Application】This outside faucet valve provides a reliable water source to areas prone to freezing, making it perfect for new installations or replacing an existing sillcock.