- Versatile Sealing Solution: These plugs are engineered to effectively seal various openings in machines, fittings, or pipes. They are ideal for intake manifold connections, pump connections, and engine jack holes, making them suitable for manifolds, ships, industrial pipe systems, and swimming pool pipes. - Package Details: Each package includes 2 pipe fasteners with a thread diameter of 3/4-16UNF. Each plug measures 22 x 15 mm (0.87 x 0.59 inches) in diameter and height. - Durable Construction: Made from high-quality 45# steel, these plugs provide outstanding durability and resistance to corrosion, ensuring they perform consistently over the long term. The addition of sealing rings enhances their sealing capability, delivering reliable protection for your piping systems. - Thoughtful Design: The internal hex head allows for improved leverage and precision control when using a hex key, facilitating easy installation and removal. - Application Scenarios: 1. Use these plugs for securely capping off unused ports in industrial piping to prevent leaks and contamination. 2. Perfect for sealing connections in marine applications, ensuring that ship fittings remain intact and leak-free. 3. Ideal for maintaining swimming pool infrastructure by effectively blocking off pipes during maintenance or seasonal shut-downs. This product combines functionality and reliability, making it an essential component for various sealing needs.