Black Delrin Valve Body Z2847
The delrin valve screws into the plastic housing fixed within the inflatable tube.
The new Zodiac valve comes complete with a new O-ring seal and has an overall thread diameter of 25mm. This valve was used on numerous models in the Cadet , Classic, Futura, Ax and Commando boats. If it looks like this then it is the right one!
The cap that fits with this is z2846