18x24x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 1 Pack garden-accessories Clay Pebbles size 4mm-16mm

Clay Pebbles size 4mm-16mm

The pH range of the HI98107 is from 0

Total Nitrogen (N) 1

Recommended for INDOOR use

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

18x24x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 1 Pack garden-accessories Clay Pebbles size 4mm-16mmNordic 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