Features:

1 suitable for any tubes

2 easy steps to take tubes off

3 once inserted to the nut, the tube would not easily loose

4 nickel-plated metal body ensures anti-corrosion and anti-contamination

5 All R and NPT threads are pre-coated sealant

6 quick and simple tube insertion

7 compact, light weight design

8 advanced, well-proven tube retaining system

9 Re-usable thread seal