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1″ National Pipe Thread (NPT) connection explained

A 1” NPT (National Pipe Thread) connection is on the bottom of all our windsock frame assemblies (see picture #1) for connection to a 1” or larger windsock pole/support pipe.  We also supply a 1” FNPT (Female National Pipe Thread) pipe fitting/coupling to connect our windsock frame to a 1” NPT pole/support pipe.