FEATURES AND BENEFITS NO SUMP REQUIRED - No need to chisel out a sump to meet the1.5 times the pipe diameter sump depth requirement. SDX has a 1.485 feet per second velocity at the opening at a maximum listed 200 gpm. Approved as a bulkhead fitting so the safety is in the cover and plate. Patented “ribbed” design achieves high flow with sixty “mini” drains Suction doesn’t transfer if one area is covered Dome shape to prevent a seal by a swimmer Anti-vortex shield blocks contact with direct suction SDX retro can be installed as a single cover with an SVRS installed on the line. "Retro" version fits existing suction outlets up to 10” in diameter Stainless steel security screws Secondary support plate secured to protect the sump and fittings With a flow rating of 200 gpm on the floor and 192 gpm on the wall SDX is compatible with pumps up to 3 hp. In most cases this eliminates the need to calculate the system total dynamic head. SDX has a 1.485 feet per second velocity at the opening at a maximum listed 200 gpm. DESCRIPTION MAX FLOW FLOOR MAX FLOW WALL Two SDX High Flow Safety Drains 200 gpm (756 lpm) 192 gpm (726 lpm) Three SDX High Flow Safety Drains 300 gpm (1136 lpm) 288 gpm (1090 lpm) Four SDX High Flow Safety Drains 400 gpm (1514 lpm) 384 gpm (1456 lpm) Meets National anti-entrapment requirements ASME A112.19.8 – 2007 Listed IAPMO tested and certified; a nationally recognized testing laboratory (NRTL) accredited by ANSI. USPC (uniform swimming pool, spa and hot tub code) compliant IRC (International Residential Code), section 106.2 – suction fittings – compliant SDX protects against all five types of entrapment; hair, limb, body suction, evisceration, and mechanical entrapment. Order SDX for new pool construction or when installing a new plaster ring (such as when a new interior finish is being applied). SDX is available for concrete, vinyl and one/piece fiberglass pools Order SDX Retro when replacing an existing suction outlet cover up to 10” in diameter. SDX Retro is available for concrete and vinyl pool