Neil G Deer Park , WA March 02, 2020 Appliance: Whirlpool 1.8 Cu Ft Microwave GH4184XSB1 Whirlpool Microwave Gh4184xsb1: Filters were old and needed replaced. How to replace Grease Range Hood Microwave Filter 6-1/2" X 12-3/16" X 3/32". Replaced filters with new ones. Fit and are working fine. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes