21_1/2x23_3/8x1 Exact MERV 14 AC Furnace Filters 6 Pack Master Controller Now that you have THOUROUGHLY

Now that you have THOUROUGHLY enjoyed this product and are standing on POLLEN MOUNTAIN

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

The controller also features a dosing relay

use ½ to 1 teaspoon per gallon of water

Keep your growing environment in balance by ensuring you have proper ventilation

21_1/2x23_3/8x1 Exact MERV 14 AC Furnace Filters 6 Pack Master Controller Now that you have THOUROUGHLYNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.