13x25x1 MERV 14 AC Furnace Filters 6 Pack Cloning & Seed Starting Hydrofarm's Commercial Heat Mat helps

Hydrofarm's Commercial Heat Mat helps maximize your growing area by letting you daisy chain up to 4 of the MTMDA add-on units to this one

Original and Silver Bullet

A deliberate blend of fast-acting and natural nitrogen and calcium sources engineered for maximum effect and high solubility

60 – 90 LPH Flow Rate

- UL recognized components

13x25x1 MERV 14 AC Furnace Filters 6 Pack Cloning & Seed Starting Hydrofarm's Commercial Heat Mat helpsNordic 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.