Dry riser
（重定向自Wet riser）
![Dry riser inlet found at the ground floor of flats to be used during fire fighting in Singapore](/Images/godic/202502/20/Dry_riser4250.jpg")
![A dry riser inlet box at Park Street Car Park in Cambridge, United Kingdom.](/Images/godic/202502/20/Dry-Riser4250.jpg")
A dry riser is a normally empty pipe, that can be externally connected to a pressurized water source by firefighters. It is a vertical pipe intended to distribute water to multiple levels of a building or structure as a component of the fire suppression systems.