【MASTERBUILT REPLACEMENT DIGITAL FAN】: Compatible with Masterbuilt gravity series 560 / 800 / 1050 Digital Charcoal Grill and Smoker, Part number : 9904190040. #TIPS: PLEASE CHECK COMPATIBILITY# 【COMPATIBLE MODELS】: Master Built Gravity Series Digital Charcoal Grill: MB20040220, MB20041220 MB20040122, MB20040221, MB20041020 【PACKAGE INCLUDES】: 1 pc Feed Fan,1 pc Stainless Steel Fan Guard, 4 pc Fan Screws 【EASY TO USE】: Easy to install, plug and play. the digitally controlled fan moves air flow from the hopper to the cooking chamber and maintains desired cooking temperature. 【WORRY FREE SERVICE】: If you have any questions about the installation and fit models or other problem, Please feel free to contact us, we will deal with you within 24 hours.