Help with Strideways pro plus dual stage

[mharris]

I've just received a Strideways regulator. It came with some o-rings/seals in a bag. However, there is no mention of them in the instructions.

The transparent washer type - there is already one of these on the main co2 bottle connection. It is quite thick and not like any seal I've seen before. I presume that should stay in situ, and the one in the bag is a spare?
The black o-ring - I cannot see where this fits. The bubble counter already has o-rings in the bottom and where the top unscrews. This spare o-ring is too big for either of those.

Also in the box is an allen key, but I cannot see any hex bolts/screws anywhere on the unit.

Anybody have any ideas? I'm not overly concerned - I'm sure it'll work fine when I connect it all up. Just curious if I am missing something.

 

[Scaperinc]

I have the same one I think they are spares

 

[Surya]

Does this help (at 1:15) re Allen key - seems to be if you want to install a secondary manifold:

 

[mharris]

Thanks Surya, yes that is very helpful.
I've also had a reply from Aquarium Gardens, and the black o-ring is also for when installing another manifold. It goes between the two.

 

[Surya]

Good to know! I've got the single stage Strideways, also from Aquarium Gardens, and love it.