20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 10 Pleated Plus Carbon 2 Pack spl_hgc Thermal Management: Passive

Thermal Management: Passive

one must ensure that the Ca and Mg you are feeding your garden is derived from high quality source materials

The ILUMINAR single-ended 315W CMH lamps are perfect for propagation

This insect growth regulator (IGR) disrupts the life cycle between larval

20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 10 Pleated Plus Carbon 2 Pack spl_hgc Thermal Management: PassiveImportant 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,