16_3/8x21_3/8x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Water Heaters Chillers decrease the pressure from incoming

decrease the pressure from incoming water lines

Bluelab pH probe KCI Storage Solution is manufactured to high laboratory standards

Thanks to the variable speed controls

high capacity odor filter can be used with high CFM fans unlike traditional carbon filters

16_3/8x21_3/8x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Water Heaters Chillers decrease the pressure from incomingNordic 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