16x20x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 2 Pack X Nutrients Grow Spray 1 Gal which will prove fatal to

which will prove fatal to them

The Orcon Mason Bee Nest (OB-RBN35) is a kit that will help captivate beneficial bees to your valuable garden

Injection capabilities of 1:100 to 1:20

Stability Indicator - An hourglass indicator is displayed on the LCD until a stable reading is obtained

16x20x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 2 Pack X Nutrients Grow Spray 1 Gal which will prove fatal toImportant 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