20 to 1 Micron Density. Suitable for all 20" Big housings. Holds more dirt and impurities than normal Depth poly spun or pleated filters. Please note this filter is not a normal Polyspun Depth Cartridge it is the highest quality NSF approved Dual Gradient Density.
Old product code: 20 B PS 01 or 20BPSGD01
Compatible with the Puretec PX01MP2, Puretec MB01LD2, Davey 1PS20J, and WSI-PPC45-2001 cartridges.