Montana question

Two guys in JAX

Junior Member
We have a 2011 Montana 5th wheel. It is designed with a sewer pipe boom. The idea is to store 10 ft of collapsable hose inside. The problem is, when I took delivery it wasn't configured and I've never been able to find an end piece that can fit inside the tube/ boom. Does anyone use this that can help me? Seems like a great design.