Traeger Grease Pan Liner For Timberline – 5 Pack – BAC404. BAC404. Grill Drip Pans. Keep grill clean-up simple with these heat-proof aluminum grease pan liners. These disposable liners should rest completely within your grease pan. If it covers any areas outside of the grease pan it could affect the performance and temperature of your grill. Pack of 5. Designed for use with Traeger Timberline.