17x25x1 Exact MERV 7 AC Furnace Filters 12 Pack Environmental Controllers Alg·A·Mic™contains a low level of

Alg·A·Mic™contains a low level of NPK

which results in less humidity stress for the plant

Transplant your greenhouse pots by sizing them up with Big Rootz Bloom

Provides fast nutrient absorption

17x25x1 Exact MERV 7 AC Furnace Filters 12 Pack Environmental Controllers Alg·A·Mic™contains a low level ofNordic 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