13_1/4x13_1/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack co2 providing the ability to double

providing the ability to double or triple your canopy square footage within your existing structures footprint

Natural barley malt extract provides supplemental carbohydrates that give plants a needed energy boost just before harvest

Apply weekly during propagation

mildews and Botrytis

PLUG DIMENSION (LX W X D) - 1 3/4" X 1 3/4” X 1 1/2”

13_1/4x13_1/4x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack co2 providing the ability to doubleNordic 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