Atomic Regulator Pre 2002 Exhaust Valve (Black)

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bractime

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Scuba Instructor
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I have an older Atomic Regulator with the black second stage exhaust valve (pre-2002). I was wondering if anyone knew if the newer grey valve has any performance improvements or was the change just a color change.
 
Hi Bractime

The only difference between the all black and the grey/black is the grey material is slightly softer. This does make exhaling slightly easier with the newer exhaust. Not a huge change, but the easier exhalation rate is one of the reasons for the change. Thank you Bractime.....Happy New Year!

Atomic Aquatics
 
https://www.shearwater.com/products/perdix-ai/

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