16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 15 Plus Carbon 1 Pack lighting-accessories The exposed stainless steel temperature

The exposed stainless steel temperature sensor on these models facilitates faster and more accurate temperature measurement

runs 70% cooler than HID lights

and is ambidextrous

KIND Grow is designed for the vegetative period of the growth cycle

Automate and connect multiple plants

16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 15 Plus Carbon 1 Pack lighting-accessories The exposed stainless steel temperatureImportant 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,