Paramount SDX2 High Flow Drain, Concrete, Black (004162223103) features a VGB-compliant, high-flow suction outlet with a patented ribbed ABS cover, designed for concrete pools as a wall or floor fitting. With a 188 GPM floor and 154 GPM wall rating, it ensures low-velocity flow (1.396 fps) and safety with an anti-vortex shield, requiring no sump for easy retrofitting up to 10" plaster rings.Compatible with concrete pools; retrofits suction fittings up to 10" diameter, per Paramount specs.Specs: 188 GPM floor, 154 GPM wall; 1.396 fps velocity; ABS plastic; meets VGB 2008, ANSI/APSP-16 2011, IAPMO standards.Installation: Mounts with adaptable backplate; tools: screwdriver; secure with included Torx/phillips screws; no sump chiseling needed.Features: 60 flow partitions for high flow; 5-year lifespan; anti-vortex shield enhances safety.