20x20_1/2x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_allstate What also sets these bags

What also sets these bags apart is the quality materials

industrial-grade storage bags

Power 620+ Watts Voltage Range 120-277 VAC Flowering Footprint 5' X 5' Veg Footprint 6' X 7' System PPF Efficacy 2

rinse immediately with plenty of water

ALSO NON-PLANT FOOD INGREDIENT: 1% Humic acid (derived from Lignite)

20x20_1/2x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_allstate What also sets these bagsNordic Pure Custom MERV 7 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