20x25x1 Pleated MERV 13 Air Filters 3 Pack lighting-&-electrical-components These don't look like the

These don't look like the ones from the hydro store because they are double-junction

5 lbs 25¼” x 19¾” x 10¾” 17

and priced to fit your budget

250 BTU an hour

Root-Gel contains IBA and NAA in a water soluble form

20x25x1 Pleated MERV 13 Air Filters 3 Pack lighting-&-electrical-components These don't look like theNordic 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