Designed for commercial and multifamily plumbing, hydronic piping, and mechanical rooms, the Uponor ProPEX® LF Brass Commercial Ball Valves are engineered with a solid, durable body and stainless-steel ball and stem for greater reliability, longevity, and system performance. Purpose-built for high-volume PEX-a piping systems, the 1/2" to 2" offering also includes options for stem extensions that accommodate up to 2" of insulation to help projects meet energy codes.