9"x 9" Grate All Waterway Products are Designed, Engineered and Manufactured in the USA. 8" Tru Flo Drain 640-190X V Cover & Frame 10" Tru Flo Drain 640-479X V Grate & Frame 640-477X V Grate & Frame 640-100X V Clover Drain 640-130X V Ultra Strip Drain - Vinyl 640-131X V Ultra Strip Drain - Fiberglass 640-132X V Ultra Strip Drain - Concrete 640-133X V Ultra Strip Drain - Field Built 640-134X V Diamond Strip Drain - Vinyl 640-135X V Diamond Strip Drain - Fiberglass 640-136X V Diamond Strip Drain - Concrete 640-137X V Diamond Strip Drain - Field Built 640-476X V 24" x 24" Grate & Frame 640-472X V 12" x 12" Grate & Frame 640-231X V 8” Ulta Drain 640-82XX V Equalizer Outlet & Wall Fittings 640-180X V Cover & Frame All Waterway Drains Meet the Latest CPSC and VGB Requirements 640-214X V 10” Ultra Retro Outlet 807-0400.1211 ©2011Waterway Plastics UNBLOCKABLE UNBLOCKABLE UNBLOCKABLE UNBLOCKABLE Model No. Description Total Open Area Sq. Inches Floor Flow Rate GPM Wall Flow Rate GPM Flow Rate GPM @ 1.5 ft/sec 640-18XX V 8” Tru Flo 14.8 153 96 68 640-19XX V 10” Tru Flo 30.9 200 136 143 640-479X V 9”x 9” Grate 43.6 289 208 203 640-477X V 18” x 18” Grate 174.4 788 517 812 18"x18" Grate Listed, Certified and Tested in strict accordance to the requirements of ASME A112.19.8-2007 and ASME A112.19.8a-2008 (as defined in CPSC letter dated April 8, 2011). Compliant to the latest Consumer Safety Product Commission Requirements (CPSC). Drains & Grates Designed, Engineered and Manufactured in the USA.