14x16x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack LUXX Bar The strong elastic closure at

The strong elastic closure at the top secures the shoe cover in place tightly

easy close-off mechanism

it is also toxic to bees

soil mediums

Calibration: Digital calibration by push button

14x16x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack LUXX Bar The strong elastic closure atNordic 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