Scubapro S600 vs. S620

[jchance]

I posted this in the Scubapro forum but am not holding my breath that anyone from the actual company will respond.

I have seen the specs on the newer version but my question is more about parts interchangability and annual kits. I hope someone from Scubapro like Jules will chime in but I am not holding my breath. The smaller 620 has improved ease of breathing but other than a smaller case and lever, are the air barrel and diaphragm the same? In other words, what are the physical differences?

Thanks!

 

[ams511]

My understanding watching the YouTube video is that the air barrel is not the same. There was a thread discussing this when the S-620 was introduced. My take is that Scubapro does not want to allow customers to upgrade their 600 to a 620.

The improvement of breathing was largely on the exhale part of the breathing process.

 

[guruboy]

Online descriptions say the 620 is slightly smaller and has the same diaphragm