11_1/2x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Pumps & Irrigation - 2910 RPM

- 2910 RPM

The vessels keep the plants small

the Max Fan has the power to move air efficiently

2 RAW Humic Acid - 8 oz

PDF: 1700 umol/s

11_1/2x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Pumps & Irrigation - 2910 RPMNordic 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