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Over 300 Fire Hose Adapters In Stock - Brass and Made in the USA lead free aluminum threaded fire adapters allow you to connect fire hose or fire hydrants to the three most common threads: National Pipe Thread (NPT), National Pipe Straight Thread (NPSH) and Garden Hose Thread (GHT).
The most common thread type in use by United States Fire Departments today is NH aka NST. Some departments have special threaded fire hoses and fire hydrants.