Side 1 - Male 3/4 Garden Hose Thread (GHT) for connecting to a hose Side 2 - Female 2-1/2 National Standard Thread (NST) for connecting to the hydrant Inside diameter of 2.5 NST / NH adapter conforms to NFPA 1963 Standard for Fire Hose Connections 2014 Edition NH / NST: The most common thread type in use by fire departments today is NST or National Standard Thread. NST also goes by the initials NH or National Hose. It can even be referred to as NHT or National Hose Thread.
Brass Fire Equipment 1-1/2 NST (NH) Female x 3/4 GHT Male Brass
FireHoseDirect Aluminum 1 1/2inches Swivel Female NH
LTWFITTING Brass Fire Hydrant Adapter 2-1/2-Inch NST (NH) Female x
SpringSpray 2-1/2 NST (NH) Female x 1-1/2 NST (NH) Male Brass
Brass Fire Equipment 2-1/2 NST (NH) Female x 2 NPT Male Brass
SpringSpray Swivel 2-1/2 NST (NH) Female x 2 NPT Male Brass Fire
Fire Hydrant Adapter, Fire Hose Adapter, 1-1/2 NST/NH Female x 3
FireHoseDirect Aluminum 1 1/2inches Swivel Female NH
Brass Fire Equipment 1-1/2 NST (NH) Female x 3/4 GHT Male Brass Fire Hydrant Adapter with Pin Lug Brass Hydrant to Garden Hose Adapter 1.Size
Brass Fire Equipment 1-1/2 NST (NH) Female x 3/4 GHT Male Brass Fire Hydrant Adapter with Pin Lug Brass Fire Hydrant Hose Adapter Fitting Connector
1-1/2 NPT Male x 1-1/2 NST (NH) Male Brass Nepal
Fire Hydrant Hose Adapter, 2-1/2 NST (NH) Female x 1-1/2 NST (NH