16x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 2 Pack Meters & Solutions These fixtures are great for

These fixtures are great for commercial sized operations all the way down to your starter garden at home

Package Size: :915*335*230MM

Par Value (PPF) - 1122umol/m²/S

The Matrix is reusable and can sit on top of a block or fit into your pot

16x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 2 Pack Meters & Solutions These fixtures are great forImportant 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