18x36x1 MERV 12 AC Furnace Filters 6 Pack pumps-&-irrigation Upgraded Full Spectrum: Idea for

Upgraded Full Spectrum: Idea for all growth stages- from veg to bloom

Add to reservoir

- Multiple horizontal and two vertical reflective stripes

teamed up to blend the perfect ratios of coco coir pith

18x36x1 MERV 12 AC Furnace Filters 6 Pack pumps-&-irrigation Upgraded Full Spectrum: Idea forNordic Pure MERV 12 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, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different