Why do coil cleaning videos hit? Well, most want to tell you that you did it wrong even though the coil is clean in the end. It's also satisfying to watch a dirty coil get cleaned. The Sealed Unit Parts Co., Inc. Coil X Brush is made from metal yes, but designed for this type of work, gets in and pulls out debris. Can't say enough about Refrigeration Technologies Viper Coil Cleaner. It's been a staple for years. #refrigeration #refrigerationcall #commercialrefrigeration #hvac #condensercoilclean