Valve to tap tails insert

Insert for a valve when you want to connect tap tails directly to it. Helps to create more flat surface for better seal.
One version with O ring slot if you want to be 100% it'll never fail (only made it for my colleague after he demonstrated some scepticism about my "brilliant" idea).

You might need to test print and resize depending on your printers dimensional accuracy.

PLA no good. PETG or ABS
Resolution 0.2-0.25