Full port forged brass ball valve with adjustable packing gland compatible with all -R piping systems available exclusively at Aquatherm dealers. Easily control flow with this quarter-turn valve. Enjoy all of the labor saving advantages of Webstone with over-molded connections for heat fusion. Designed for use with water, oil, glycol mix in residential or commercial residential plumbing, commercial plumbing, heating systems. Refer to specification sheets for additional technical information. All Webstone products are backed by a limited lifetime warranty.