Features:

• Replacement charcoal hood vent filter for Whirlpool range hoods and microwaves
• Measures approximately 8" x 9 1/2" x 3/8"
• Replaces Whirlpool original part number 4378584
• For use with range hoods and microwaves which do not vent air outside

Editor Reviews:

Product Description:
Air filters for range hoods and microwaves should be replaced every three to four months.