Jeff D Lakeland , FL May 09, 2016 Appliance: Whirlpool Microwave Oven MH1170XSY0 Whirlpool Microwave Mh1170xsy0: Vent broke from screws. How to replace Carbon Range Hood Microwave Filter 5" X 5-3/8" X 3/8". Vent had corroded at the screws from years of use. Found the original part here. Ordered a black one since it was half the cost of the silver one. Also ordered new filters. Price was somewhat comparable to other sites or better but charges shipping. All parts did come at once the next day! Lucky me I guess we are near a warehouse. Parts fit fine and now the microwave looks good again. 6 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes