Are the 18# and 40# really the same size?

[OldNSalty]

I was looking at the website and when I compared the signature series it has this down for the 18 and the 40.

Size: Approximately 11.5" wide x 22 " tall at full inflation ( 29cm x 55cm)

For the 30# it is this

Size: Approximately 13.5" wide x 23 " tall at full inflation ( 34cm x 58cm)

I'm just wondering if it is a typo and how you can get 40# of lift in an 18# shell but you need a bigger shell for 30.

 

[Eric Sedletzky]

The 40 is much bigger than the 18, over twice the internal volume.
The only part of it that might be the same would be the inside width of the inside panel, but it is taller, wider, and thicker. Think about it, it has to be.
From the 18 to the 30 is some difference. From the 30 to 40 is some difference. But from 18 to 40 there is a lot of visible difference.
What you read is a typo.

 

[eelnoraa]

40 is although not very big, but 18 is tiny.

 

[pubert]

yeah its just a typo on their website. someone posted actual photos comparing the size of the oxycheq 18, 30 and 40# here:

http://www.scubaboard.com/forums/bu...s-torus-17-vs-dss-lcd-20-a-3.html#post7494288

 

[buddhasummer]

A little late to the party but posted side by side pics of the 18,30 and 40 is the thread below around post #21.

http://www.scubaboard.com/forums/bu...s-17-vs-dss-lcd-20-a-3.html?highlight=Oxycheq