17x29x1 Exact MERV 13 AC Furnace Filters 6 Pack Grow System/ Trays/ Reservoirs PrSpec: 200 μmol/s

PrSpec: 200 μmol/s

Refills of Grow Plugs and Macroplugs are available for purchase separately

Twister T4 Stand Only (No Vacuum or T4 Trimming Machine)

This rooting formulation contains:

pressure compensating torturous path

17x29x1 Exact MERV 13 AC Furnace Filters 6 Pack Grow System/ Trays/ Reservoirs PrSpec: 200 μmol/sNordic 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