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22-138
(Na stanie)
CHECK VALVE TEE: 22-138 GAUGE ADAPTOR, 1/8" -27FPT THREADS FOR ADAPTING STANDARD PRESSURE GAUGES FOR INSERTION INTO 22-137 CHECK VALVE AND 22-143 CHECK VALVE TEE. ALSO FOR ALL 2X2" ROOM THERMOSTATS, HUMIDISTAT AND TRANSMITTERS