A guide on Microns and what pore size efficiency is.
Aquaboon 1 Micron 20 x 4.5 Sediment Water Filter Replacement Cartridge, Whole House Sediment Filtration
Membrane Solutions 20 Micron Pleated Sediment Water Filter 10x4.5 Replacement Whole House Water Filtration Cartridge Compatible with ECP10-1,ECP20-BB,R50-BBSA,FXHSC,CB1-SED10-BB, 12 Pack
5 Micron 20 Inch Big Whole House Sediment Water Filter, 20 x 4.5 Water Filter Cartridge Replacement for SimPure DB20 Blue Housing, WGB22B, WGB32B, AP802, BB20B, BB20T, 2-Pack
How Many Microns Should Your Water Filter Be? - Brother Filtration
ISPRING 20 micron 10 in. x 2.5 in. Universal Sediment Filter Cartridges Multi-layer 15000 Gal. (Pack of 50) FP120X50 - The Home Depot
Membrane Solutions 20 Micron Pleated Sediment Water Filter 10x4.5 Replacement Whole House Water Filtration Cartridge Compatible with ECP10-1,ECP20-BB,R50-BBSA,FXHSC,CB1-SED10-BB, 12 Pack
Replacement Water Filter Cartridges Guide – H2O Distributors
5 Micron 20 Inch Big Whole House Sediment Water Filter, 20 x 4.5 Water Filter Cartridge Replacement for SimPure DB20 Blue Housing, WGB22B, WGB32B, AP802, BB20B, BB20T, 2-Pack
Membrane Solutions 20 Micron Pleated Polyester Sediment Water Filter 10x2.5 Replacement Cartridge Universal Whole House Pre-Filter Compatible with W50PE, WFPFC3002, SPC-25-1050, FM-50-975 - 4 Pack