20x25x5 (4 3/8) Lennox X6673_X6675 Replacement  MERV 12 Pleated Plus Carbon 4 Pack Pots and Containers excessive inlet pressure

excessive inlet pressure

The Active Aqua line of premium white reservoirs and covers offers features that rival the competition at value prices

using 4 in PVC or 4 in DWV plastic pipe works best

Dark Energy is a select blend of L-amino acids

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement  MERV 12 Pleated Plus Carbon 4 Pack Pots and Containers excessive inlet pressureImportant 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,