9x 9 High Flow replacement cover and inner frame. (112 GPM at 1.5 FPS.) WGX1031BHF2 All drain systems and drain covers must be selected according to the design flow rate for each body of water. The design flow rate should be verified using the ANSI/APSP-7 Field checklist for identifying suction entrapment hazards. All replacement drain covers must be installed by a certified pool professional that is also authorized by Hayward to installation manual. For CPO Services, a refund will be given prior to 14 days of the class less a $35 cancellation fee and a 5 percent credit card charge. No refund will be given in the two week period before the start of the class. For products, refunds will be given on unopened returned merchandise within 30 days of purchase minus a 15 percent restocking. Shipping fees are not refundable.