This regulator is made up of the new 2nd stage Compact, combined with the MC9 diaphragm first stage and the Octopus Compact, that uses the same casing as the Compact model made from special hi-tech polymers, the only difference being the yellow front cover.

The XTX50 Octopus is our top-of-the-line Octopus in terms of features and performance.

The R105 Octopus offers dependable breathing performance in a classic downstream design with a dive/pre-dive VIVA switch and reversible hose attachment.