Microparticle Pleated Furnace Filter, 20x20x1- In. Brand_ProtectPlus cleans the entire fuel system

cleans the entire fuel system and prevents future deposit build up

The enzymatic cleaner will continue working as long as the food source is present

For any gas or diesel fuel blend

PEX dip tube

Nose thread (the threads where the filter spins onto the filter head) is 1" - 12 unf

Microparticle Pleated Furnace Filter, 20x20x1- In. Brand_ProtectPlus cleans the entire fuel system20" x 20" x 1", Naturalaire Micro Particle Pleated Furnace Filter, Electrostatically Charged, 100% Synthetic Wire Backed Media, Clay Coated Frame, Merv Rating 10, 90 Day Filter, Effective Against Pollen, Dust Lint, Dust Mites, Pet Dander, Mold, Bacteria, Virus Carriers, Smoke, Smog, Lead Dust.