16_1/2x22x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack X Nutrients Grow Spray 1 Gal The Dirty Dozen is a

The Dirty Dozen is a force to be reckoned with

Nordic Pure 16x25x5 Honeywell Replacement MERV 10 rated air filters are what is considered the traditional 5” filter at an actual 4 3/8”

organic way for growers to supplement their regular feeding programs

Use alone on a 15A circuit breaker

making your cleaning experience a healthier and more efficient one

16_1/2x22x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack X Nutrients Grow Spray 1 Gal The Dirty Dozen is 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