32mm flexible tube connector or hose coupler
thingiverse
This thing connects either two 32mm inner diameter (measured 31mm) tubes with each other or, as I used it, connects a flexible tube to a rainwater barrel using a rubber seal (see pictures). This way I solved the inlet of my rainwater barrel. Similar to https://www.thingiverse.com/thing:6029772 but longer so that the tube is held for 40mm on each side and fitting my 32mm flex tube. Also its designed to need no support.
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