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The Watts TK-99E Backflow Preventer Test Kit is a compact portable
device made for testing pressure vacuum breakers, anti-spill vacuum
breakers, reduced pressure zone assemblies, and double
check valve assemblies. This Backflow Preventer Test Kit has
been designed for simplified operation and rugged reliability in a
compact package. The TK-99E consists of a gauge with colorcoded
valves and hoses, hose adapters, shock cord for easy
mounting, supply pressure gauge, and a carrying case. Accuracy
is +/-1% of full scale.