Crystal Water 525 Square Foot Cartridge Filter - 2-1/2 Inch drain-type_Sump This is a Pentair R172542BK

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Crystal Water 525 Square Foot Cartridge Filter - 2-1/2 Inch drain-type_Sump This is a Pentair R172542BKThis Waterway Crystal Water Cartridge Filter is 525 square feet with 2 1 2 connections to maximize flow. Max residential flow for this model is 150 GPM. The 2 1 2 inch internals may be reduced for 2 or 1 1 2 inch piping. The Crystal Water Cartridge filters are the only filters on the market with 2 1 2 inch internal piping which improves flow and reduces system noise when using 2 1 2, 2 or 1 1 2 inch plumbing. The Crystal Water Cartridge Filters have a