17_1/2x21x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack sprayers Until recently electronic ballasts received

Until recently electronic ballasts received little attention

Timer has 15-minute increment pins

Nordic Pure 12x25x2 MERV 12 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

The Lighthouse Controlled Environment is designed to help you grow your favorite plants indoors

Core Coverage: 3*3FT(Commercial Flower)

17_1/2x21x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack sprayers Until recently electronic ballasts receivedNordic Pure Custom MERV 10 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