17_1/2x23_1/2x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack CO2 The above conditions are optimal

The above conditions are optimal and P

5 pounds treats 64 square feet

160 x Micro Drip | 1-Way Micro Tube Dripper Assembly 36" x (Single Unit)

Input Current: 8

Includes pH storage solution

17_1/2x23_1/2x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack CO2 The above conditions are optimalNordic Pure Custom MERV 12 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