1PK Spare 2" Bung Standard 2-Inch NPS Threading: Features 2-inch NPS (National Pipe Straight) Steel Bung Adapter for secure and reliable connection to drum barrels Compatibility: Specifically designed to be compatible with TRWS25 rotary drum pump systems Universal Fit Design: Fits most typical Rotary Crank Hand Drum Barrel Pumps equipped with 1 inch Suction Tube for versatile application Replacement and Upgrade Solution: Replace your damaged Bung Adapter or convert your standard pump into a Telescopic Pump for enhanced functionality Durable Cast Iron Construction: Made from heavy-duty cast iron material to ensure long-lasting performance and resistance to wear in industrial applications