12x14x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Fertilizer Push-button calibration

Push-button calibration

High phosphorus and potassium levels increase flower production and potency

40 lb Commercial Size – Bulk packaging designed for large-scale operations

Maintains flower shape for maximum visual appeal and aroma

Green Gro Flower Finisher 1-5-7 is intended for use in the final stage of bloom

12x14x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Fertilizer Push-button calibrationNordic Pure Custom MERV 8 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