10 STD PS GD 20 - 10" X 2 ½" (STD)Gradient Density 20 Micron Polyspun

50 to 20 Micron Density. Suitable for all 10 inch standard size housings. Holds more dirt and impurities than normal Depth poly spun or pleated filters.Please note this filter is not the normal Polyspun Depth Cartridge it is the highest quality NSF approved Dual Gradient Density.