Plug and Chain | 1-1/2 Inch | Brass | NST

1 1/2 in. (38.1 mm) Brass NST Plug & Chain threads to fire department connection (FDC) inlets with a pin-lug design, preventing dirt, debris, and garbage from blocking a building's water supply during an emergency. The 1 1/2 in. (38.1 mm) Male NST inlet is suitable for use with the 1 1/2 in. FDCs commonly used to supply sprinkler systems in residential buildings up to four stories in height, such as hotels, motels, apartment buildings, and large single-family homes.

This 1 1/2 in. (38.1 mm) Brass Plug & Chain utilizes National Standard Thread (NST), found in fire protection systems throughout the United States.