1 PVC union, sizes from 1 to 2 inches

1 PVC reducer, sizes from 1 to 2 inches

1 PVC cap, sizes from 1.5 to 2 inches

1 PVC cap, sizes from 1 to 1.5 inches

2 O-rings that fit into the PVC union

1 small aluminum or stainless steel can



Parts that don’t need to be sized.

1 espresso portafilter basket

2 tubeless tire air valves

1 1inch threaded PVC plug

1 1inch threaded PVC or bronze cap



When we get to the part of the air release button, I’ll show you the parts that I used, so that you can either use the same parts or look in you toolbox for some similar things that will do the trick.

This is going to be an odd part list, because the sized of some parts are going to be dependent on the size of the espresso portafilter basket you get. In the next step I’ll tell you how to correctly size the partsParts to be sized: