16x20x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 2 Pack pots Irrigating greenhouses and container plants

Irrigating greenhouses and container plants that benefit from cleaner

Each room monitored by the Carbon-X will also require an audio-visual alarm to alert the personnel to the level of CO2 in the area

bathing your plants in full-spectrum light

The fixture can be used as a stand alsone flowering fixture

16x20x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 2 Pack pots Irrigating greenhouses and container plantsImportant 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 16x20x4 filter