20x25x2 Pleated Air Filters MERV 13 Plus Carbon 3 Pack featured It has no maximum number

It has no maximum number of spray applications per season

Works with CMH Lamps Only (sold separately)

Advanced high speed quiet fans and upgraded aluminum cooling heat sinks are easy for heat dissipation

Storing your pH and/or ORP electrodes in a storage solution will also keep the junction clear

20x25x2 Pleated Air Filters MERV 13 Plus Carbon 3 Pack featured It has no maximum numberNordic Pure 20x25x2 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