8x20x1 Pleated MERV 8 Air Filters 3 Pack additives Eight 11" round ventilation sockets

Eight 11" round ventilation sockets

especially when growing situations require high air-capacity and low water-retention media

and was specifically developed for calcium-rich substrates

Use throughout the life cycle of the plant or use at the beginning of the vegetative stage to build a stockpile of compounds or at the beginning of flowering at the first sign of flower site development

(two on the FLP28)

8x20x1 Pleated MERV 8 Air Filters 3 Pack additives Eight 11" round ventilation socketsNordic Pure MERV 8 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 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters