16x20x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack spl_hf Ideal for student

Ideal for student

Cane Borer (Mult)

pH sampling assembly

double sided mounting tape and stainless steel mounting screws

Square QPlugs are available in 50 count and 100 count bags

16x20x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack spl_hf Ideal for studentImportant 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