20x21_1/2x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack CO2 or apply it directly in

or apply it directly in a planting hole – using the rate of one teaspoon for every one gallon of water

The SAM 400® is hospital proven with nationally recognized hospitals such as NYU Medical Center

• Automatic Temperature Compensation for pH and conductivity

Can-Filter has designed and built the Can-Lite for convenience and long life

20x21_1/2x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack CO2 or apply it directly inNordic 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