I'm not entirely sure what connection you're referring to but we do have replacement shower hoses like the Replacement Hose for Phoenix Faucets RV Handheld Shower Sets # PF276023. We don't have a way of knowing which brand shower you have, so I added a link below with all of our available hoses and shower replacement parts.
If you want to replace the entire shower set there isn't much of a cost difference. The Phoenix Faucets RV Handheld Shower Set # PF276053 comes with the hose and shower... view full answer...