17x21x1 Exact MERV 7 AC Furnace Filters 12 Pack extension The HEPA fibers block out

The HEPA fibers block out most airborne particles down to

Delivers all the light down to the plants

the 10 shelfs are made of aluminum alloy plate with good thermal conductivity and have 5 independent digital touch heating controls

Secure Grow offers a unique and affordable way to protect your plantings from many nuisance pests

6 m) 600V lamp cord

17x21x1 Exact MERV 7 AC Furnace Filters 12 Pack extension The HEPA fibers block outNordic 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