17x17x1 Exact MERV 7 AC Furnace Filters 12 Pack Nutrients and Supplements It is PET coated and

It is PET coated and made of 4

In- duces flowering and stimulates resinous oil and fragrance production in many flowers and medicinal herbs

Designed for use with plants

dense floral clusters during the crucial flowering and fruiting phases

Food grade

17x17x1 Exact MERV 7 AC Furnace Filters 12 Pack Nutrients and Supplements It is PET coated andNordic 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