Description  - Waterson-type Locking Arm Cam Action Quick Release Fitting.  The lock is released by pulling a wire ring horizontally away from the fitting, then using the ring to pull the arm open.
Construction & Materials  As for the Cam Action Coupler on the previous page, the fitting is the same length but has ring operated trigger locks on both arms.

Maximum Working Pressures  - As per details on previous page, Cam Action Fittings 
| Nominal Size | Length | Weight of Fitting
 | 
| in | mm | in | mm | kg | 
| 1 | 25 | 3 1/4 | 82 | 0.59 | 
| 1 1/2 | 40 | 3 3/4 | 95 | 1.15 | 
| 2 | 50 | 3 3/4 | 95 | 1.40 |