Collection: Ball Valve Brass DR or DZR Watermark Certified

For connection to potable town water supplies all brass fittings must be watermarked and DR or DZR certified

Brass when exposed to chlorinated water will leach zinc and become brittle. This is called Dezincification.

Dezincification resistant brass, or DZR brass, (something designated CR or DR) is the name given to brass that has exceptional resistance to this corrosion