- Cap Threads - 2.5 inches NH / NST
- This Cap Will Only Connect To A Male 2.5 NH / NST Fire Hydrant
- Material - Iron
- Supplied with Chain and Ring
- Color - Red
2 1/2" Male Fire Hydrant
- Inside diameter of a male adapter - 2 1/2" inches
- Outside diameter of a male NH / NST adapter - 3.06 inches (7.5 Threads per inch)
- Outside diameter a male NPSH or NPT adapter - 2.84 inches (8 Threads per inch)
