20x20_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack spl_bfg For use with greenhouses

For use with greenhouses

Prefilter: Included

but you don't know how to start

They will remain effective for about 2 years

Item # Description Initial Lumens CCT Product Dimension Net Lbs Box Dimension Gross lbs CS/QTY PX-LED32/T5/865 Plantmax – T5 LED 32 Watt / 6

20x20_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack spl_bfg For use with greenhousesNordic 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