20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 13 Plus Carbon 4 Pack timers-and-instruments As with the other ballasts

As with the other ballasts in our SG line

and other vining plants

Daisy chain feature allows multiple fixtures to be plugged in together

MERV 10 furnace air conditioner filters are comparable to HVAC filters with the rating of MPR 900-1000

· Luminaire Type - Open/Enclosed

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 13 Plus Carbon 4 Pack timers-and-instruments As with the other ballastsImportant 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,