Effective Immediately, we will no longer fill any Aluminum Scuba Cylinder made
from 6351 T6 Alloy that was not Visually Inspected by us. This is due to the large 
amount of tanks we have received with a current Visual Inspection that showed 
visible cracking in the neck area.

The following is a list of all cylinders made of 6351 Alloy:
> All aluminum tanks under Special Permit # 6498, 922, 7042, 8107, 8364, 8422
> All Walter Kidde 3AL Cylinders
> All Cliff Impact Cylinders
> All Luxfer S80.8 Manufactured Prior May 1987
> All Luxfer S72 and S100 Manufactured prior to August 1987
> All Luxfer S80 Manufactured prior to January 1988
> All Luxfer S50 and S92 Manufactured prior to April 1988
> All Luxfer S30 and S63 Manufactured prior to May 1988
> All Luxfer S40 Manufactured prior to June 1988

Please Note, Catalina Cylinders were never made from 6351 T6.