16x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 2 Pack loose coco ETL Item # Description Product

ETL Item # Description Product Dimension Net Lbs Box Dimension Gross lbs CS/QTY UG-R/SLH/8 UltraGrow – Super Large Hood 8″ 39¼” x 31¼” x 11” 39 lbs 41” x 34½” x 11½” 40 lbs 1

full-spectrum light anywhere from 0% to 100% while maintaining efficiency

Automatic one or two point calibration

open-form reflector is made from multifaceted 95% reflective European hammertone aluminum and delivers uniform growth over a broad footprint

With the Grow Flow's easy-to-program controller unit

16x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 2 Pack loose coco ETL Item # Description ProductImportant 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