"The 3/4"" BVECXLC-125BF Ball Valve with integral thermal expansion relief valve includes copper sweat connections, 3/8"" hose barb drain fitting, and a 125 psi relief setting. It is utilized in residential water heater applications to relieve excess pressure caused by thermal expansion in a closed water system. The water heater shut-off and thermal expansion relief valve combine to effectively remove the risk of harmful water pressure. Additional features of the BVECXL include a pressure rating of 400 psi WOG, a temperature rating of 180°F, and a 302 series stainless steel relief valve spring. Choose from available connection options like copper sweat, PEX, and FNPT, and fitting options like hose barb drain, compression drain, and PEX drain."