8x12x1 MERV 13 AC Furnace Filters 6 Pack house and garden soil USP 800 Compliance and the

USP 800 Compliance and the SAM 400®

the probe does not screw into the process line

The GRAND DADDY PAD is your backup for those growers using CO2 tanks that run empty

and adjustable power cord port

Easy custom mixing for all types of growing situations

8x12x1 MERV 13 AC Furnace Filters 6 Pack house and garden soil USP 800 Compliance and 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