Mueller 104-521 Anti-Siphon Frost-Free Sillcock Valve, 1/2 x 14"

Built-in lockshield, heavy-duty six-point cast-iron handle. Backflow preventer checks siphoning back into the water supply, automatically drains upon water shut off. Frost-free sillcocks provide a year round source of water to areas of structures that are subject to freezing temperatures.

• Frost free
• CSA certified
• Meets ASSE standard 1019
• Built-in lockshield, heavy-duty six-point cast-iron handle
• Threaded ends comply with ANSI B1.20.1
• Hose threads comply with ANSI B1.20.7, solder ends comply with ANSI B16.18B
• Backflow preventer checks siphoning back into the water supply, automatically drains upon water shut off
• Frost-free sillcocks provide a year round source of water to areas of structures that are subject to freezing temperatures.

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