8_1/2x30x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack spl_hi 1 sec contact time

1 sec contact time

SunBlaster includes everything you need but seed and soil

Automatic one or two point calibration

Seedlings and Small Plants

8_1/2x30x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack spl_hi 1 sec contact timeNordic 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