I bought a box of old scuba gear.

[Scott Griffiths]

All the purge covers of the second stages have disintegrated. I think they are all Oceanic. There are 3 different sizes of retaining rings. Does anyone have any idea which models these are?
I have all the serial numbers...

 

[axxel57]

The 1st seems to be be a PX2 Balanced Piston, the three bigger 2nds could be Alpha VI or 7s, and one of the two smaller 2nds a GT, difficult to say from the photos.
If you show what's below the diaphragms, it would be easier.......

 

[rhwestfall]

looks like maybe some "Slimline" octos... don't appear to be Swivel 180's...

 

[axxel57]

Don't think they are Slimlines because the 2nds on the pics have 90' degree mouthpiece shafts and a different exhaust valve cover than my Slimline 2nd......

 

[Scott Griffiths]

The 1st seems to be be a PX2 Balanced Piston, the three bigger 2nds could be Alpha VI or 7s, and one of the two smaller 2nds a GT, difficult to say from the photos.
If you show what's below the diaphragms, it would be easier.......

 

[axxel57]

Ah, okay, so the 2nd in the middle is quite sure an Oceanic GT 2nd, the two below are Alpha 6s or 7s.
The other on the right should be an Explorer 2nd, I'm just irritated by the exhaust tee, which usually are hard plastic which are as wide as the body and are pressed on the body.
The one on top looks also like an Alpha 6 or 7, but with the different exhaust tee, so I'm not sure what it is......

 

[happy-diver]

Was able to replace some of mine with later model purges of the same diameter
others had hard plastic covers with central buttons as everything did years ago

The basic of the basicest generics, and the same regs for the price of a cover

https://www.amazon.com/gp/slredirec...0896567&id=8332760937560180&widgetName=sp_btf


https://www.amazon.com/REAMTOP-Equi...567&s=outdoor-recreation&sr=1-4&ts_id=3407241


https://pulsar.ebay.com.au/plsr/clk...03854602242162d0b19ba4345a69942994cc0a8f0fd"}

 

[happy-diver]

No really, not one redeeming feature unless theyr'e working and you're diving them

actually, using their metal orifices in other regs that went plastic is very redeeming so I made oops
but draw and quarter the soft purge fashionable design with the rubbish plastic mixture instigator