The GRACO D03900 is a replacement seat kit made from polypropylene, designed for use in GRACO Husky 307 series pumps. It is intended to provide a reliable sealing surface for check balls, ensuring proper pump operation and fluid containment in industrial applications.

Key Features:

• Seat Kit
• 3/8-inch
• Polypropylene
• GRACO Husky 307 series pumps (various configurations, including PP, AC, and NPT models)
• Designed for easy replacement and maintenance
• Provides reliable sealing for check balls
• Supports quick and easy assembly/disassembly of pump components

Applications:
Industrial fluid transfer applications, including pumping antifreeze, detergents, motor oil, hydraulic fluid, cutting oil, water, wastewater treatment, and ink[5].

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of the pump.
• Ensure pump is depressurized and isolated from fluid and air sources before installation
• Follow the Husky 307 pump manual for detailed disassembly and reassembly instructions
• Inspect seat and check ball for wear or damage during replacement
• Use appropriate tools to avoid damaging polypropylene components