Free Shipping On All Orders

4" Purolator AC and Furnace Filter High Dust Holding Capacity M-8

4-inch Koch Filters - Your Go-To Replacement for Purolator HE 40 - HVAC Air Conditioner and Furnace Filters - MERV 8

We've long relied on Purolator for their dependable quality in air filtration. Unfortunately, recent changes in their production policies have made it unsustainable for us to continue carrying their line.

But here's the silver lining! We remain committed to offering you the finest air filtration options, and we're delighted to introduce the American-made Koch Filters as an exceptional alternative. Koch Filters are designed to uphold the standards of excellence you're accustomed to, ensuring top-notch quality and performance in every filter.

Scroll to top