Summary

I was dissatisfied with the usual dirt/dust caps that had no internal rings to hold onto the male connection, so drew one up in OpenScad - here's the STL. It fits snuggly when make of TPU - you must use a very flexible material and also one that will endure hydraulic oil.

Print Settings

Printer Brand:

Bambu Lab

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>A1</p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>.2 mm</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>15%</p></div></p>                                                    <strong>Filament:</strong> Any TPU                Black                    <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>I used a 0.4mm extruder, and used 2 layers for top/bottom/walls so that it would remain flexible. I actually used a Carbon X1C but the printer model isn't in the pop down list!</p></div>

ISO 7241-A quick connect male cap 1/2" body agriculture