Features A single, unblockable suction outlet that exceeds the new VGB mandate and ASME/ ANSI A112.19.8a-2008 standard For single or multiple drain use (see installation instructions for plumbing, hydrostatic valve/drain pipe and single or multi-pump connections) Single Floor: 316 GPM at 3.9 fps Wall: 208 GPM at 2.6 fps Dual Floor: 632 GPM at 3.9 fps Wall: 416 GPM at 2.6 fps Floor/wall: 242 GPM at 1.5 fps 25.9 square inch opening #316 stainless steel screws Manufactured from superior UV-resistant engineered polymers Three ports: bottom 2?" OD, 2.0" ID S/S; inside 2.0" threaded FPT; two 2" threaded plugs included Meets or exceeds NSF 50/ASME/ANSI A112.19.8a-2008 national standards and ASTM G154 UV testing Listed with IAPMO R&T