16x21_1/2x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting including most vegetables

including most vegetables

dual-release tablet design is what makes it truly unique: the first effervescent layer disperses an immediate dose within 60 seconds

storage solution and pH 7

Use TurboKlone to start your commercial grow

making Phydura ideal for fast-turnaround growing operations

16x21_1/2x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting including most vegetablesNordic Pure Custom MERV 14 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