21x23x1 Merv 13 Universal Air Filter By Tier1 (6-Pack) Pentek you won't have to worry

you won't have to worry about replacing salt or wasteful backwash cycles to regenerate the resin

which is 17 more than the previous model

and chlorine taste and odor along with a majority of microorganisms and small alloy particles using its carbon and KDF media blend

It has a rigid outer shell to help capture sediment while retaining its granular activated carbon media

do not disregard warning signals

21x23x1 Merv 13 Universal Air Filter By Tier1 (6-Pack) Pentek you won't have to worryOur Tier1 21x23x1 Air Filter MERV 13 comes in a 6 Pack. These pleated high capacity filters are constructed using electrostatically charged filter media. This 100% synthetic material offers significantly higher particulate efficiency than typical poly cotton media pleated filters, and captures the smallest and most troublesome airborne particles and allergens, such as particles that carry viruses and bacteria, pollen, mold spores, fine dust and pet