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27 fpt threads for adapting standard pressure gauges for insertion into 22-137 check valve and 22-143 check valve tee. Also for all 2 x 2" (5.08 x 5.08 cm) room thermostats, humidistats, and transmitters.
27 fpt threads for adapting standard pressure gauges for insertion into 22-137 check valve and 22-143 check valve tee. Also for all 2 x 2" (5.08 x 5.08 cm) room thermostats, humidistats, and transmitters.
This adapter has 27fpt threads for adapting standard pressure gauges for insertion into 22-137 check valve and 22-143 check valve tee. It also works for all 2 x 2" (5.08 x 5.08 cm) room thermostats, humidistat and transmitters.
