Michael H Bellevue , NE February 21, 2020 Appliance: Whirlpool Microwave Oven MH1170XSY0 Whirlpool Microwave Mh1170xsy0: Grill vent broken/filter change. How to replace Charcoal Filter. Grill Vent 100% fit and finish perfect. Replaced the SS colored plastic with black and it looks better. Filters were exact fit as well. Doing this reminded me "we all need to clean our microwaves better" Thanks. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes