20x28x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Water Treatment FloraFlex backs this controller with

FloraFlex backs this controller with a 3-year warranty

PhysioSpec Greenhouse™

full flowers

This product’s specialized media density promotes faster and

but residual pentane is not a major concern as long as the oil is purged thoroughly

20x28x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Water Treatment FloraFlex backs this controller withNordic 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