10 BIG PS GD 50 - 10" X 4 ¼" Big Gradient Density 50 Micron Polyspun
100 to 50 Micron Density. Suitable for all Big Blue, Big White, and 10" Jumbo 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.