22x29x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Water Heaters Chillers has a high cation exchange

has a high cation exchange rate with potassium

Comes with a 1 m (3

Revolutionary new membrane technology with increased flow rate and the ability to run at pressures as low as 20 psi

effective broad-spectrum antibacterial cleaner with exceptional odor eliminating qualities

commonly known as “red wigglers” and technically known as Eisenia fetida

22x29x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Water Heaters Chillers has a high cation exchangeNordic Pure Custom MERV 7 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition