Our True Union Safety-Block Ball Valves are ideal for commercial swimming pools. Our Schedule 80 PVC True-Union Ball Valves with EPDM Seals are available in 1/2" - 4" sizes, and are designed to safely block full system pressure in either direction. On 2 1/2” to 4” valve sizes, socket end connectors will be supplied unless otherwise specified. DESIGN ADVANTAGES Double union design for Quick, Easy Piping Installation, Removal and Maintenance. Stem has internal land above ball that is pressure seated to the body protecting the stem and stem seal from contaminants in the fluid media. Long life seats are externally adjustable, fully replaceable. True full port design has immeasurable pressure drop. Valve body can be rotated 360° for actuation clearance in system. Manual Lever Handle indicates valve open/close position. Safety design blow-out proof stem. Available in socket or threaded end configurations. Safety block ball valves (1/2" thru 2" sizes) include socket & threaded end connectors. All Valves are hydro-statically tested. Note: Not recommended for compressed air or gas service.