20x22_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack garden-accessories plants compensate in order to

plants compensate in order to protect itself and facilitate reproduction by releasing more resinous oils which translates into a higher quality yield

Can be used in soil

more cost-effective compared with other same type lights

and high-quality fruits to develop in flowering plants

Four way dimming feature 60%

20x22_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack garden-accessories plants compensate in order toNordic 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