Tee, 3/4'' Npt Brass
Black Tee (p/n 133) can be used for vent option near pump. Brass Tee (p/n 3850) can be used in domestic water situations. Black Tee (p/n 418) can be used to install 1-1/4" thermostatic valve
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Complete Moly PH test kit. Treat a system with Moly...