The "rubber D ring" is a large o-ring.
I use bungee, a big loop put in the same place as the "rubber D ring" and it works great. I use tire inner tube from a bike on the corrugated hose to hold my inflator hose in place along it.
I use bungee, a big loop put in the same place as the "rubber D ring" and it works great. I use tire inner tube from a bike on the corrugated hose to hold my inflator hose in place along it.