Choosing NPT Size
1/4" (National Pipe Thread) is the most common size around the world however, many Lonn products come in 1/4",3/8" or 1/2" female NPT. The 1/4", 3/8" or 1/2" NPT does not designate the actual inside measurement of the fitting. Please see the diagram to determine the correct NPT size you require.
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