17x29x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack fans-ventilation-ducting Stability Indicator– A clock tag

Stability Indicator– A clock tag stability indicator will disappear to alert the user when the reading is stable

The MBS-SD and WD-2 are used to detect smoke or water leaks

Cool White: SZ5-M3-W0-00 215 pcs

Use with special horticultural lamp 1000W driver

17x29x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack fans-ventilation-ducting Stability Indicator– A clock tagNordic Pure Custom MERV 14 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