16x22x1 Exact MERV 14 AC Furnace Filters 6 Pack Extension Delivers 15% more light with

Delivers 15% more light with 35% less power

Human Trimmer Replacement: 75 people

These blocks have an excellent water absorption and (re)saturation rate and feature the exclusive Plant Comfort fibre structure which has a lower density of resistance during rooting with no loss of firmness

1 wheel in center

DC extension cords (sold separately) enable the driver (ballast) to be installed outside the grow tent where will become even cooler

16x22x1 Exact MERV 14 AC Furnace Filters 6 Pack Extension Delivers 15% more light withNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.