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The Hand Drum Pump Piston from Dayton Diesel exhaust fluid (DEF) is specifically designed for dispensing small volumes of DEF into vehicles and industrial systems that run on diesel fuel. This ISO-certified pump comes in a durable construction, ensuring reliable performance while maintaining the purity of DEF. Featuring a 5 gpm flow rate at 120 strokes per minute, this versatile pump is perfect for servicing late model trucks and SUVs, as well as stationary SCR-based systems. Its ease of operation makes it ideal for use in various industries that rely on diesel engines. Choose the Hand Drum Pump Piston from Dayton for efficient and dependable DEF dispensing needs.