18x24x1 Pleated MERV 7 Air Filters 6 Pack 9 CFM Designed for use with Hydrofarm

Designed for use with Hydrofarm and PARsource high frequency DE fixtures and ballasts

in order to achieve a solid fertilizer base which can be used on its own or built upon with CES additives to achieve maximum growth

Lightweight for easy mounting

Healthy soil that is rich in organic material means healthy

No bio-waste

18x24x1 Pleated MERV 7 Air Filters 6 Pack 9 CFM Designed for use with HydrofarmNordic 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