SUP Adapter with middle pin

This is an adapter for a SUP, this ones needs a pin in the middle to open the valve. So it is possible to use a mini pump for quick filling the sup to almost full in about 2 minutes, for full pressure you will need to use a pressure pump. There are several of these pumps around, there is a 19mm outlet version and a 20mm outlet version on the plates, choose the one you need, if other sizes needed drop me a note and i will add. Use an O-ring as a gasket or just print the TPU-ring on third plate. There is a minor update, we have a new SUP and the middle pin needs to pressed a bit more for easier air flow, so i extended the middle pin by 2mm