25x30x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Grow Tents Ideal for Integrated Pest Management

Ideal for Integrated Pest Management (IPM) programs

Adjustable wings for optimum light

LED Display

Replaceable pH electrode cartridge

pressure compensating torturous path

25x30x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Grow Tents Ideal for Integrated Pest ManagementNordic 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