The clear 90 twists and locks on to your outlet, it is not permanent, it allows you to see when the water is running clear from your tanks. I carry both a 90 and a 45 to give me some flexibility in connections depending on where I'm parked, a sewer hose support is nice to have also. I don't know how the drains are set up for your coach or what adapters you may need. I will recommend the Dominator sewer hose, very tough, easy to handle and store. You can get Dominator hoses, fittings and extensions from either Camping World or Amazon.
Takes a while to get the hang of things, if you have questions ask here or a neighbor camper, most are friendly and glad to help. Hope this helps you!
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