16x20x4 (3 5/8) Pleated MERV 12 Air Filters 2 Pack covid-19 Make easy cuts with the

Make easy cuts with the hard chromed SK5 steel saw blade

Potassium K+ (ppm)

increase nutrient and water uptake

Pyur Scientific Propelyne Glycol USP Kosher 5 Gallon

even in variable weather conditions

16x20x4 (3 5/8) Pleated MERV 12 Air Filters 2 Pack covid-19 Make easy cuts with theImportant 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