20_1/2x25_1/2x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack lighting_accessories the ability to fine tune

the ability to fine tune the flow allows the grower to adjust per the strain they are trimming

Smoother edges for improved safety

These fundamental organic materials are also found in VermiBlend and VermiT Solution

or any loose growing media like peat

DIN connector and 1m cable (included)

20_1/2x25_1/2x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack lighting_accessories the ability to fine tuneNordic 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