1) Brass with good nice nickel plated.

2) BSPT thread (British Standard Taper Pipe Thread).

3) The thread part of the fitting is longer and more thick than many other supplier of China.

4) Each and every pcs was tested at 10kgs/cm2.

5) Thread with teflon coating which can seal directly without any other seal material.

6) Bottom was hexagonal suitable for fitting by lkey.

7) Inner seal can bear 75 degree

8) The snap spring is stainless steel with heat treatment and the life time is more than 1000 times.

9) Body: Brass or PBT

10) Body Color: Nickel plated or natural brass; Black or Grey PBT

11) Release Ring Color: Black, Blue, Red, Grey, Orange, Green etc.

12) Certification: ISO9001,2000