20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 15 Air Filters 2 Pack Chemicals 5 gallon Resin Collection Bags

5 gallon Resin Collection Bags can process up to 1lb of material at a time independently

Auto-off function preserves batteries

This is a biologically time-release formula

Its USB interface enables connection with the Autopilot PX1 Digital Lighting Controller

If it rains within 24 hours of application

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 15 Air Filters 2 Pack Chemicals 5 gallon Resin Collection BagsImportant 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,