20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 1 Pack Water Treatment Using this device in conjunction

Using this device in conjunction with the LED fixture will allow you to control them with an EL series controller

A quiet blower fan kit designed to boost airflow coming from your home's fireplace

making it more effective than "burndown herbicides" for ongoing weed control

Add 5-10 mL per gallon

20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 1 Pack Water Treatment Using this device in conjunctionImportant 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,