Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
The Sea Arm VII tray does not work... Ikelite Ultra-Compact housings have two mounting holes using SAE 12-24 thread, and neither of these is positioned correctly for the single tripod screw in the Sea Arm VII tray.