Air system filler attachment - building a new one

[STxFamer]

Have someone that wants one of these so if I am making 1 I can make more. Just checking to see if anyone might be interested in one Think my costs might be as low as $10 and then postage on top of that. Anyway say $20 delivered at the most. Might order parts for about a dozen units

Let me know if anyone might want one if this works out

 

[5.0KDM]

I don't need one but thank you for your contribution to the community!!