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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
It's great for outdoor trail running and mountain biking too
Max coverage: 4 x 4
Steel frame and aluminum blades for maximum durability
18x24x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack Pest and Disease Control Hydrofarm's Commercial Heat Mat helpsNordic Pure 18x24x4 Pleated Air Filters MERV 10 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, bacteria, mold spores and other contaminants are removed. All Nordic Pure pleated air filters are manufactured using a heavy duty, moisture resistant beverage
