How to use the two supplied O rings in BP-EML16 fittings

Question

There are two spare O rings inside the packaging of BP-EML16 fittings, How do I use these O rings?

The installation guide search returned nothing on Bitspower's website.

Thank you.

Answer 1

Hello, the spare O-ring is smaller which fits for the brass tube or which tubing is a little smaller. The spare O-ring is replaced of the outside o-ring of the fitting.