15x24x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack timers-and-instruments Designed to bring simplicity to

Designed to bring simplicity to nutrient testing

Automated filter change warning

The filter screw mount is a 37mm aluminum alloy ring and can be removed and adapted for security cameras

Capable of producing more than 1

15x24x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack timers-and-instruments Designed to bring simplicity toNordic Pure Custom MERV 7 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