20x22x1 Pleated Air Filters MERV 13 Plus Carbon 6 Pack ventilation "The 4-part system is dialed

"The 4-part system is dialed in

Suitable only for high frequency

Coarse Perlite

Contains the following non-plant food ingredients:

Texas Controller includes: 20 gallon reservoir with grommet

20x22x1 Pleated Air Filters MERV 13 Plus Carbon 6 Pack ventilation "The 4-part system is dialedNordic Pure 20x22x1 MERV 13 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home. It will help eliminate unwanted odors as well as trap most airborne dust and particulate matter for fresh, clean air. Odorous gases and vapors (VOC) are attracted to and held by the activated carbon material while