25x30x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack odor-control BioWeed encourages prolific root and

BioWeed encourages prolific root and foliage growth as well as larger flowers and fruits

• Can be retrofitted into current HVAC system or into

and more throughout the growth cycle

faster with direct sensing technology

25x30x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack odor-control BioWeed encourages prolific root andNordic Pure Custom MERV 13 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