17_1/2x23_1/2x1 MERV 7 AC Furnace Filters 6 Pack lighting-accessories Clay surfaces absorb large amounts

Clay surfaces absorb large amounts of plant nutrients without any appreciable change in the osmotic concentration of the growing medium or fluctuation of pH

-Dust cover

Perfomance Data

Diamondback Moth Larvae

Helps stimulate flower development in the final bloom stage

17_1/2x23_1/2x1 MERV 7 AC Furnace Filters 6 Pack lighting-accessories Clay surfaces absorb large amountsNordic 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