Hose, Expansion tank lower connection to water pump return manifold.
Supplied in a single piece that is cut to the desired length depending on the type of water pump return to system set-up.
This hose is the largest one on the expansion tank that protrudes from the lower portion of the tank.
As per item number 313 on the attached diagram
The Ex ADF U1700L has a metal manifold in between so cutting of this hose to suit is required.
To suit the Ex ADF U1700L and others.