Tank difference

[oscar_2424]

hi does anybody knows the difference between catalina and luxfer tanks?

 

[dlndavid]

Not quite sure what you mean by different, as they both make various different sizes.
Here is a very useful scuba cylinder specification comparison chart.
here

 

[mixdiver]

The biggest difference is there buoyancy. The catalina tanks are a lot more tail heavy. The luxfer tanks tend to be kind of floaty on the rear. I like the luxfers the tend to help me stay level in the water.