$63.99 Single 20 x 4.5 Poly Pleated Filter Cartridge 10-micron - The Tank Doctor
94282 GE Hytrex GX05-20 Depth Sediment 5 Micron Filter Cartridge 2.5 x 20 - Canadian Water 
5 Micron Poly Spun Sediment Filter Cartridge | 2.5 x 20 - Walmart.com - Walmart.com
