Gardena barrel coupling

I needed a simple and water tight way to connect a gardena coupling to my water barrel to be able to fill it. this gardena 'bolt and nut' parts are what I came up with.You do need an rubber O-ring for the gardena tip.

The bolt 'flange' has two sealing rings at the outer diameter. You can of course also use a rubber O-ring here as well.

Print with enough fill percentage (I used 30%) so that the print can handle the rotation force when fastening.

Please note that the wall of the barrel can not be to thick, otherwise the female gardena coupling (the one you connect to this part) will hit the nut.

Please download the solidworks file if you would like to change the design.