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Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
External Total Control: WF840 is dimmable and distributes broad
110v/208v/240v/277v compatible
This high-PFF MH lamp delivers optimized full spectrum plant biologically active radiation
Plants have evolved in the ground
20x25x4 (3 5/8) Pleated MERV 14 Air Filters 2 Pack jg External Total Control: WF840 isImportant 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. If you are replacing a 4 3 8 depth 20x25x4 filter