12 Inch Square Wave Anti-Entrapment Suction Outlet Cover With 6 Inch Socket Deep Sump inlet-pipe-size_1 1/2" This is a Pentair Large

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It connects using a 3/4 inch pipe thread

This sodium carbonate product is in granular form

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12 Inch Square Wave Anti-Entrapment Suction Outlet Cover With 6 Inch Socket Deep Sump inlet-pipe-size_1 1/2" This is a Pentair LargeThe is an AquaStar 12 inch Square Wave Anti Entrapment Suction Outlet Cover with 6 inch Socket Deep PVC Sump. The suction outlet cover has an open area of 90. 8 square inches. The floor and wall flow rates are 361 GPM at 1. 3 fps. The sump depth required is a minimum of 3 inches. The AquaStar sumps are manufactured from superior UV resistant engineered polymers. No transitional glue is required. All components meet or exceed ANSI APSP 16 2011 and NSF