We had a need for a coupler that would work with the Blue Robotics 4" acrylic tube. So, we made one. Here is a picture of it during pressure testing at University of South Florida. The coupler was successfully tested to 800psi.
3 Likes
Cool to see - thanks for sharing! 
Out of interest, what was the use-case that required a coupler, rather than just using a single longer tube with some kind of mount in the middle?
We use an opaque tube for the main body of our Barracuda AUV but we needed a clear window that would allow us to have a downward looking camera.
1 Like
Ahh, fascinating! 