Actually.. they have the Deep and Deep 90 in black trim, which use normal Orings... Duration and Duration 90 in green trim, which have viton Orings, and Deco in white trim, which is viton Orings.. They used to have a Dive, which was a dark grey trim.. but it became the Deep.. They ALSO have an octo.. which has yellow trim..

The '90' varients have the Din fitting coming out of the side of the cylinder shaped assembly, the other type is inline... (the black and green trimmed pair in the picture are both 90 varients.. the Deco only comes in the straight varient.... the straight varients of the Deep and Duration look like the Deco model, with Black and Green trim respectively.

I have a pair of Deco's that I use for my side mount rig... I use the M&J Manufactuering swivels on them so that I can use standard hoses..

The Straight first stages worked out better for my planned hose routing then the 90's.. and I got the same price on the Deco as I could get on the Duration or Deep.. so I figured heck.. I'll get the one that's been oxygen cleaned =)

I also plan on ordering a set of yellow exhaust covers..... since my OC gear is being moved to bailout duty for the most part =)

-Scott