16x20x4 (3 5/8) Pleated MERV 10 Air Filters 2 Pack Amendment Prevents kinking of tubing

Prevents kinking of tubing

Expanded size: 4" x 4" x 4"

It contains two beneficial fungi that deliver an improved range of pathogen control:

Frequency : 50/60HZ

Use the Oakton pH tester with accurate ATC to get instant at-a-glance readings

16x20x4 (3 5/8) Pleated MERV 10 Air Filters 2 Pack Amendment Prevents kinking of tubingImportant 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