16x24x2 Pleated MERV 12 Air Filters 12 Pack pump BIG MAMA is solid rockwool

BIG MAMA is solid rockwool and does not have a precut hole thus making it suitable to hold any size smaller block on top (even a Hugo)

or to operate at specific time of day and durations

keep your crops free from pests

Artichoke Plume Moths

16x24x2 Pleated MERV 12 Air Filters 12 Pack pump BIG MAMA is solid rockwoolNordic Pure MERV 12 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, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different