Heavy Duty 2 1/2" Replacement Iron Fire Hydrant Cap with NH/NST Threads

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Heavy Duty 2 1/2" Replacement Iron Fire Hydrant Cap Features

• Cap Threads - 2.5 inches NH / NST

• This Cap Will Only Connect To A 2.5 NH / NST Fire Hydrant

• Material - Iron

• Supplied with Chain and Ring

• Color - Red

About Heavy Duty 2 1/2" Replacement Iron Fire Hydrant Cap

Heavy duty 2.5 inch replacement iron fire hydrant cap with NH / NST threads including chain. Pentagonal in shape. The most common size and threads for US fire hydrants is 2 1/2" NH / NST. 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)