15_1/4x15_1/4x1 Exact MERV 13 AC Furnace Filters 6 Pack Growing Accessories Mix well then add remaining

Mix well then add remaining fertilizers and additives

perfect for on-the-go testing in any terrain

Designed to use with 1/2" tubing

Features dual 120mm PWM-controlled DC fans that are highly efficient in maximizing airflow at lower noise and power levels

up through 1/3 HP (10 max

15_1/4x15_1/4x1 Exact MERV 13 AC Furnace Filters 6 Pack Growing Accessories Mix well then add remainingNordic Pure MERV 13 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, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200