17_1/8x34_7/8x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack refurbished-products Ginormous was specifically formulated to

Ginormous was specifically formulated to help your favorite plants yield the largest fruits

Maximum Height: 12

The choice of professional growers

A major Florida hospital was failing USP 797 testing with positive growth results of airborne Bacillus non-sporulating and airborne Aspergillus flavus mold spores

7V | Red = 4

17_1/8x34_7/8x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack refurbished-products Ginormous was specifically formulated toNordic Pure Custom MERV 13 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