The Pressure Relief Valve Automatic Safety Valve is designed for use with 3L, 5L and 8L backpack sprayers in gardening. It provides automatic pressure relief to help prevent overpressurization and protect sprayer components during operation. Key benefits Improves safety by automatically venting excess pressure in backpack sprayers. Helps protect the pump, seals, and fittings from stress and potential failure. Supports reliable performance across multiple common spray capacities (3L, 5L, 8L). Serves as a dedicated safety valve that integrates with gardening fittings basket systems. Key attributes Functionality: automatic pressure relief valve for backpack sprayers. Compatibility: designed for 3L, 5L and 8L backpack sprayers and associated gardening fittings basket. Size/Capacity: suitable for 3L, 5L and 8L sprayer models. Material: not specified in the product title. Performance: automatic operation to relieve excess pressure and maintain safe spray conditions. Two to three use cases Use case 1: Routine gardening spraying with a backpack sprayer where pressure can rise during pumping or heating. The valve automatically relieves excess pressure to maintain safe operation. Use case 2: Replacement or upgrade of an existing safety mechanism in a 3L, 5L or 8L backpack sprayer to restore automatic pressure relief. Use case 3: Garden treatment tasks that require dependable pressure control at the point of use, ensuring consistent application while protecting equipment. Notes This valve is described as an automatic safety/pressure relief component for backpack sprayers in gardening fittings basket systems. For installation details, material specifications, and exact compatibility with specific sprayer models, refer to the product page or manufacturer guidelines.