The 2011BV quarter-turn frost-free Sillcock has: an anti-Siphon vacuum breaker; an identical flow rate as the multi-turn 2011 model; a metal handle, packing nut and vacuum breaker cup; a threaded vacuum breaker with o-ring seal for quiet operation; thick rubber stem packing; and a chrome-plated professional finish.
The new Factory Mutual (FM) 4910 PVDF (polyvinylidene fluoride) high purity sheet material meets the requirements of FM Clean Room Materials Flammability Test Protocol, Class 4910.