10x22x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack vacuum The absence of frame wire

The absence of frame wire eliminates any shadows in beam

Included is the exclusive Lock & Seal 15' 600V heavy duty lamp cord and mogul socket that conveniently plugs into any Hydrofarm or Xtrasun ballast

Auto off function

100% blackout material

MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500-1900

10x22x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack vacuum The absence of frame wireNordic 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