20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 14 Air Filters 4 Pack ventilation/air-conditioning the Vortex Powerfan VTS Series

the Vortex Powerfan VTS Series come ready to plug in and have a 5 year manufacturer warranty

Fish Bone Meal

Treats up to 2

Integrated Temperature Sensor– Built in temperature sensor allows for temperature compensated measurements

8" Air cooled Reflector - Air-Cooled with a flange to attach your ducting directly to the reflector

20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 14 Air Filters 4 Pack ventilation/air-conditioning the Vortex Powerfan VTS SeriesImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. We also carry 4 7 8 and 5 1 4 inch depth filters,