Nancy O Tucson , AZ July 06, 2020 My Whirlpool microwave was giving a message to replace charcoal filter. I found the part I needed at AppliancePartsPro.com it was quickly delivered. I had watched the video about replacement on their site,I followed instructions and it was done ,so easy. Thank you. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes