Looks like a pretty heavy duty system to me, I also see they sell an adapter to adapt the cam lock back to standard bayonet so you could use a standard hose if need be. Too bad it's so spendy.
I also came across another product they sell that looks like a pretty decent sewer hose support.
Hose supportPs: found it on Amazon under the Lippert name
http://www.amazon.com/Lippert-359724-Master-Extension-Management/dp/B010X65OHE/ref=pd_bxgy_263_img_2?ie=UTF8&refRID=1SPH39H6MF11FDJGEXMZ