This is the high pressure hose assembly that sends the paint from the fluid section to the manifold filter of an airless sprayer.
This airless hose is used on a variety of Graco airless paint sprayers, including many of the small contractor airless' such as many of the ST Pro series sprayers, the STX, and the 190ES.
Part #: 244067
Part #: 193710
Part #: 114797
Part #: 238450
Part #: 246386