Single Floor: 88 GPM at 3.2 fps Wall: 70 GPM at 2.6 fps Dual Floor: 88 GPM at 1.6 fps Wall: 70 GPM at 1.3 fps Triple system Floor: 176 GPM at 2.1 fps Wall: 149 GPM at 1.7 fps Floor/wall: 123 GPM at 1.5 fps 8.8 square inch opening #316 stainless steel screws Manufactured from superior UV-resistant engineered polymers Meets or exceeds NSF 50/ASME/ANSI A112.19.8a-2008 national standards and ASTM G154 UV testing Listed with IAPMO R&T