TempControl "B" series, valve and piping in cabinet. ASSE 1017, CSA B125.3 certified. 1 1/2" Female NPT inlet, 2" Female NPT outlet. Brass, Bronze, and Stainless Steel construction. White enamel cabinet. Min. flow rate 0.5 gpm. (ASB) Factory assembled and tested. (M) Surface mounted cabinet. (TOP) Top supplies.