16x20x4 (3 5/8) Pleated MERV 15 Air Filters 2 Pack chillers-heaters-and-purification Operating temperature: -40˚F-176˚F (-40˚C-80˚C)

Operating temperature: -40˚F-176˚F (-40˚C-80˚C)

healthy and problem free

All California Lightworks products are proudly made in the USA

Membrane memory to dramatically reduce creasing effect and PET coated to protect against corrosion and wear

See the usage rates below

16x20x4 (3 5/8) Pleated MERV 15 Air Filters 2 Pack chillers-heaters-and-purification Operating temperature: -40˚F-176˚F (-40˚C-80˚C)Important 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