15x23x1 Exact MERV 7 AC Furnace Filters 6 Pack king Includes 2 - 19

Includes 2 - 19

No need to have multiple machines in waiting while others get cleaned

It is designed for vegetative cultivation practices in commercial cultivation or home hobbyists cultivating without CO2 supplementation

CONTAINS NON-PLANT FOOD INGREDIENTS Active Ingredients:

Controlling CO2 has never been easier or more affordable

15x23x1 Exact MERV 7 AC Furnace Filters 6 Pack king Includes 2 - 19Nordic Pure MERV 7 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 and other contaminants are removed. MERV 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters