16_1/4x21_1/4x1 Exact MERV 8 AC Furnace Filters 6 Pack refurbished-products usable depth is 20 cm

usable depth is 20 cm

Upgraded Full Spectrum: Idea for all growth stages- from veg to bloom

Use clean measuring instruments--do not put anything into the bottle

for dip style

1000W DE CMH LAMPS SOLD SEPARATELY(available in 3K & 4K color temperatures)

16_1/4x21_1/4x1 Exact MERV 8 AC Furnace Filters 6 Pack refurbished-products usable depth is 20 cmNordic 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