Air pump adapter to fit between a standard SUP-hand-pump hose and Ryobi ONE+ R18MI-0's low pressure, high flow side. (SUP = Stand Up Paddle Board).
Pump hose side has a double sided thread, outer D=27.75 mm (1.09 inch), d=24.4 mm).
Adapter height total H=30mm.
Passed the tests of inflating my SUP a couple of times now. Printed in PETG. No issues so far, but of course use with causion, as all prints can have their flaws.
The author marked this model as their own original creation.