15x15x1 Exact MERV 14 AC Furnace Filters 12 Pack grow-light-bulbs Bars design provides good

Bars design provides good

Perfectly sized for standard germination trays

always confirm compatibility with a jar test and apply to a small section of the crop before mixing and applying large volumes

By using Bio·Heaven™the plants’ energy will be increased

Height: 9 13/16"

15x15x1 Exact MERV 14 AC Furnace Filters 12 Pack grow-light-bulbs Bars design provides goodNordic 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.