22x23x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_fluence Growers typically see improved energy

Growers typically see improved energy efficiency (up to 2

High Efficiency Up to 2

- Easy to use CO2 enrichment or CO2 ventilation controller

Neem Oil and a synergist

22x23x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_fluence Growers typically see improved energyNordic 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