8x20x1 Pleated MERV 13 Air Filters 6 Pack ventilation/air-conditioning Features a variable fan speed

Features a variable fan speed controller

Elastic wrists provide a secure fit and help keep contaminants out

extend your watering schedule

Use KALIX Yucca as a wetting agent or surfactant in foliar sprays and nutrient solutions

Slightly higher PAR for better flower density

8x20x1 Pleated MERV 13 Air Filters 6 Pack ventilation/air-conditioning Features a variable fan speedNordic Pure MERV 13 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 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200