These fittings and adapters feature a male connection and female connection, in various thread types and diameters.
|NPT||National Pipe Thread (American Standard Taper Pipe Thread)|
|NPSH||National Pipe Straight Hose (American Standard Straight Pipe for Hose Couplings)|
|NH or NST||National Hose Thread or National Standard Thread (American Standard Fire Hose Thread)|
|GHT||Garden Hose Thread (standard household thread for water faucets)|