10x28x1 MERV 8 AC Furnace Filters 6 Pack pots Features a speed controller utilizing

Features a speed controller utilizing PWM which can control the fan's speed without generating noise

Spectrum Options:

Natural fertilizer

5mm (0 - 8 Degrees)

Get the enzymes down at planting times—2-3 times during the growing season so it’s always available to the plants

10x28x1 MERV 8 AC Furnace Filters 6 Pack pots Features a speed controller utilizingNordic 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