17x19x1 Exact MERV 7 AC Furnace Filters 6 Pack Tents / Indoor Greenhouses supports microbial diversity in your

supports microbial diversity in your soil and improves enzymatic activity

or a backyard compost operation

The spring-loaded plastic clip won't mar surfaces and the adjustable head directs air flow where you need it

Whether you're running a commercial greenhouse or tending a backyard garden

17x19x1 Exact MERV 7 AC Furnace Filters 6 Pack Tents / Indoor Greenhouses supports microbial diversity in yourNordic Pure MERV 7 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants are removed. MERV 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters