Caleffi 1-1/4" Sweat High Flow Thermostatic Mixing Valve w/ Temp Gauge, 7.6 CV (Lead Free)

Optional: (2) NA10366 (not included) 1" & 1-1/4" Inlet Check Valve Assembly Adjustable thermostatic mixing valve for radiant hydronic heating systems and domestic water systems with outlet temperature gauge. The 5231 series thermostatic mixing valves are ASSE 1017 approved for point of distribution and are designed specifically for systems requiring high flow rates and precise, stable temperature control.