13x18x1 Exact MERV 14 AC Furnace Filters 6 Pack pots-and-containers - 4-hour REI and no

- 4-hour REI and no pre-harvest interval

The FULL NOVA WX is e-ballast compatible and is supported by a one-year warranty

This kit contains 4" flanges that will allow you to set  up air-cooling of two Powerhouse ballasts or a Daystar DAUN reflector

Spectrum Combinations for Your Plants

(1) MT Multiplying Medium

13x18x1 Exact MERV 14 AC Furnace Filters 6 Pack pots-and-containers - 4-hour REI and noNordic 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.