8x28x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack vacuum PBH Rice Hulls add porosity

PBH Rice Hulls add porosity to the rooting substrate that allows improved movement of water and oxygen to aid root development and reduce the incidence of disease

and other gaseous contaminants

1 Gal) Tank Capacity

Wide Variable Voltage Range

3/8" FNPT ports

8x28x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack vacuum PBH Rice Hulls add porosityNordic Pure Custom MERV 10 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition