The GRACO 121308 Plug, Expanding is a genuine replacement part designed for use in GRACO equipment. It is typically used to seal or plug openings in GRACO sprayers or hoppers, such as the T-Max hopper, ensuring secure and leak-free operation. The material is not specified in available listings, but it is likely engineered for durability and chemical resistance. Key Features: Plug, Expanding 121308 Compatible with GRACO T-Max hopper and similar equipment Designed for secure fit and leak prevention Engineered for easy installation and removal Reliable performance in demanding environments Applications:Used in GRACO sprayers and hoppers, such as the T-Max hopper, to seal openings and prevent leaks during operation. Installation Notes: Using genuine GRACO parts ensures optimal fit, performance, and longevity of your equipment. Ensure the equipment is depressurized and cooled before installation Clean the opening before inserting the plug Check for proper fit and secure seating to prevent leaks Inspect the plug regularly for wear or damage Replace if signs of deterioration or leakage are observed