GF Piping Systems PVC and CPVC pressure regulating valves have a chemical-resistant plastic construction with no exposed metal parts. They feature a modular system design, replaceable cartridges and injection-molded arrows to indicate flow direction. The pressure reducing Type 582 valve maintains constant outlet pressure, while the pressure retaining Type 586 valve maintains constant inlet pressure.

GF Piping Systems; 800-854-4090; www.gfpiping.com