12x24x2 Pleated MERV 14 Air Filters 3 Pack grow-light-ballasts Tests one fixture only at

Tests one fixture only at either 120/240/277V output

MERV 7 furnace air conditioner filters are comparable to HVAC filters with the rating of MPR 600

Far Red light is responsible for increased leaf size

Slowly add oil to top of "oil level" line

Larger fan to introduce more oxygen to the grow chamber with even greater cooling effects

12x24x2 Pleated MERV 14 Air Filters 3 Pack grow-light-ballasts Tests one fixture only atNordic 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.