25x30x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack HPS The sachet’s EthylBloc™ technology leaves

The sachet’s EthylBloc™ technology leaves no trace or residue after treatment is completed

Packing: 1500 units/case

Oyster Shell Lime

and temperature in one convenient

Light sensor attached to 1

25x30x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack HPS The sachet’s EthylBloc™ technology leavesNordic 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