8_1/2x30x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack eligible-for-discount At the heart of both

At the heart of both these systems is the new and improved PHB4030 Phantom Commercial DE Ballast with USB Interface

This insect growth regulator (IGR) disrupts the life cycle between larval

Because let's get real

Patented output control maintains maximum PAR value over lamp life

8_1/2x30x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack eligible-for-discount At the heart of bothNordic Pure Custom MERV 12 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