Schrader to Coleman air adapter
thingiverse
This is a Schrader valve (7.5mm bike pump) to Coleman air mattress (19mm) adapter. I used it with a portable hand pump and a Coleman Quickbed; it fit snuggly on both ends and worked quite well. I have included the Inventor file in case anyone wants to modify for a slightly different valve diameter. Print Settings Printer: QB-BD Two Up Rafts: Yes Supports: No Infill: 100% Notes: Printed in PLA with CuraEngine with a 6mm brim; no supports required.
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