22x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights and calibration information

and calibration information

If immediate application isn’t possible

Works great with Plantmax – 1

Less light deterioration

With just 4 household tools (Pliers

22x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights and calibration informationNordic 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