16x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 2 Pack water-pumps-&-irrigation-supplies Output Relay Rating: 10A

Output Relay Rating: 10A

IP-65 Pressure-Washable

These fans are available in 12"

Jump Start 2' T5 Modular System

The Nutradip GrowBoss is a nutrient monitoring system that assists growers in achieving maximum results for their growing efforts

16x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 2 Pack water-pumps-&-irrigation-supplies Output Relay Rating: 10AImportant 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