www.pmmag.com/articles/88869-freeze-free-faucet-from-arrowhead-brass
Freeze-Free Faucet from Arrowhead Brass
June 1, 2005
Arrowhead Brass has incorporated aerospace technology into its FreezeFree Faucet, which works by sensing the temperature of the air and opening an internal valve long enough to warm the valve a few degrees above freezing. After warmed, the water flow stops.
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