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Side-to side oscillation or lock in place
They are the perfect accessory for your on-the-go testing
The ballast is low frequency ballast designed specifically to run low frequency CMH arc tubes
Evaporation from the tray on hot days helps prevent leaf scorch in the same way a gravel tray would
20x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 6 Pack commercial-lighting-fixture Side-to side oscillation or lockImportant 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 20x20x4 filter
