18x24x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 1 Pack garden-accessories The pH range of the

The pH range of the HI98107 is from 0

Clay Pebbles size 4mm-16mm

• 85% Noise Reduction Coefficient (NRC)—best on the market

Contains natural non-toxic ingredients

MERV 13 Trion Air Bear replacement furnace air conditioner filters are comparable to HVAC filters with the rating of MPR 2200-2400

18x24x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 1 Pack garden-accessories The pH range of theNordic Pure 18x24x4 MERV 14 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that will attract 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