22x30x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Grow Light Bulbs I was skeptical about a

I was skeptical about a glyphosate-free product working this well

Four-way output control: 60%

Release rates: 500-3

Nordic Pure 16x25x5 Air Bear Replacement MERV 14 air filters measure an actual depth of 4 7/8"

• Oil Mist Filter Cap

22x30x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Grow Light Bulbs I was skeptical about aNordic Pure Custom MERV 13 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