14x14x1 Pleated Air Filters MERV 7 Plus Carbon 12 Pack Commercial Lighting Once in calibration mode the

Once in calibration mode the pH electrode can be calibrated to 1 or 2 points using the pre-programmed standard buffers (pH 4

Why choose Acti·Vera™

*Based on flow at an average of 15 psi

Don't be fooled by organic products that have inflated nitrogen (N) numbers

the digital controller has programmable triggers that activate the attic fan when your house gets too hot or humid

14x14x1 Pleated Air Filters MERV 7 Plus Carbon 12 Pack Commercial Lighting Once in calibration mode theNordic Pure 14x14x1 MERV 7 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