18 x 36 Inch SuperFlow PVC Frame and Flat Grate pool-dimensions_20x44 the outgoing water is finally

the outgoing water is finally filtered via an inbuilt cartridge filter and produces crystal clear water

The pre-filter is provided for use in situations where deposits in the water could clog or damage the pump

This item number is for two items

They have two-way valves (one inlet and one outlet) and are used to permit and shut off fluid flow

75 inches thick

18 x 36 Inch SuperFlow PVC Frame and Flat Grate pool-dimensions_20x44 the outgoing water is finallyThis is an 18 x 36 inch SuperFlow PVC Frame and Flat Grate. The SuperFlow VGB 2017 certified main drain grates and covers have a super flow rate and a unique top profile design that provides extreme comfort under foot. These large area main drain frames and grates actually begin at 18 inch x 36 inch and go up in size in 18 inch increments. The SuperFlow capacity starts at 2080 GPM; that is unmatched by the competition. Install end to end to