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Old 08-17-2013, 11:54 AM   #1 (permalink)
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Join Date: Apr 2006
Location: Syracuse, NY

Is this an expansion chamber?

I remember seeing things like this in General Joe's ads back in the day.
They don't appear to have any baffles inside so I'm not sure if they're an expansion chamber or extensions as it comes apart into threee pieces.

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Old 08-17-2013, 04:09 PM   #2 (permalink)
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Join Date: Nov 2008
Location: Ham Lake, MN

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More pictures? Top piece looks like the dual bottle adapter I have for a VM68, a little different though. Do they all have male and female ASA threads?
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Old 08-17-2013, 11:38 PM   #3 (permalink)
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It's a Pro-Line expansion chamber. It's really not much of an expansion chamber, but that's what they marketed it as. As I recall, I think most of the chambers are removable and you can use them as bottle adapters. The threading on each chamber is the same as a regular, screw on bottle thread so you can actually screw your tank right into the "expansion chamber".
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Old 08-18-2013, 06:32 PM   #4 (permalink)
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I remember having one about 20 years ago.

Like said above, the threads were the same, on top and on bottom. You could buy them in 3 sizes, small, medium an large. The larger sizes simply had extra segments in the middle.

Sorta making it modular. It was advertised as being able to change shape, and configure in many different ways. Truth was it was cheaper then any other E/C on the market..... which is probobly why anyone bought it.

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