17_1/4x29_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack pots mixed-flow and centrifugal ventilation fans

mixed-flow and centrifugal ventilation fans

150 and 400 Micron Screens as well as ½ inch Mesh also available/ Sold separately

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

Rust and many other foliar fungal diseases

🔋 Long Battery Life: Runs on 2 AAA batteries (included) with up to 500 hours of testing time

17_1/4x29_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack pots mixed-flow and centrifugal ventilation fansNordic 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