— 18 mCompare
Octopus: every model side by side
Every Octopus model we sell, side by side: specs, sizes, colours, and our review video where we have one. Scroll the table sideways to see more.
| Model |  AQUALUNGLeg3nd Octopus |  AQUALUNGHelix Pro Octopus |  AQUALUNGHelix Compact Pro Octopus |  AQUALUNGCalypso / Titan Octopus |  AQUALUNGABS Octopus |
|---|---|---|---|---|---|
| Best for | Leg3nd regulator owners: Aqualung made this octopus to match the Leg3nd primary second stage | Helix Pro regulator owners: Aqualung says this octopus delivers the same high performance as the Helix Pro primary second stage | Travelling divers: Aqualung made it small and compact, marks it for light weight and travel, and the braided hose packs easily | Divers on a Calypso or Titan regulator: Aqualung made this octopus to go alongside them | Divers who want an octopus that works on either side: the 120° angle works in right- or left-hand positions without hose kinks |
| Price | Ask for the price on LINE | Ask for the price on LINE | Ask for the price on LINE | Ask for the price on LINE | Ask for the price on LINE |
| Colours | — | — | — | — | — |
| Sizes | — | — | — | — | — |
| Our review video | — | — | — | — | — |
| Type | Octopus (alternate second stage), downstream valve, balanced | Octopus (alternate second stage), downstream valve, pneumatically balanced | Octopus (alternate second stage), downstream valve, pneumatically balanced; small and compact | Octopus (alternate second stage), downstream valve; for the Calypso and Titan regulators | Octopus (alternate second stage) |
| Venturi switch | MIN (less assistance, helps avoid free-flow) / MAX (more assistance, easier inhalation); overmolded, works in gloves | MIN (less assistance, helps avoid free-flow) / MAX (more assistance, easier inhalation); overmolded, works in gloves | MIN (less assistance, helps avoid free-flow) / MAX (more assistance, easier inhalation); overmolded, works in gloves | Less assistance (helps avoid free-flow) / more assistance (easier inhalation); overmolded, works in gloves | — |
| Cover opening channels | Wide radial openings let water flow sideways over the diaphragm: prevent free-flow in strong current, cracking effort 20% lower | Wide radial openings let water flow sideways over the diaphragm: prevent free-flow in strong current, cracking effort 20% lower | Wide radial openings let water flow sideways over the diaphragm: prevent free-flow in strong current, cracking effort 20% lower | — | — |
| Heat exchanger | Yes — keeps ice from forming on the valve inlet | Yes | Yes | — | — |
| Work of breathing | 0.7 J/L | 1.25 J/L | 1.25 J/L | 1.0 J/L | — |
| Nitrox | Up to 40% O2 when new, out of the box (21% in Europe) | Up to 40% O2 when new, out of the box (21% in Europe) | Up to 40% O2 when new, out of the box (21% in Europe) | Up to 40% O2 when new, out of the box (21% in Europe) | — |
| Mouthpiece | Comfo-Bite (palate bridge, hypoallergenic silicone), swaps without tools; reusable clip | Comfo-Bite (palate bridge, hypoallergenic silicone), swaps without tools; reusable clip | Comfo-Bite (palate bridge, hypoallergenic silicone), swaps without tools; reusable clip | Comfo-Bite (palate bridge, hypoallergenic silicone), swaps without tools; reusable clip | — |
| Hose | 1 m yellow Aqua Flex hose with dual protectors, yellow front cover | 1 m yellow hose, yellow front cover | 1 m yellow braided hose: flexible, comfortable, packs easily; yellow front cover | 1 m hose, yellow front cover | 1 m yellow hose |
Specs from the brands' official sites · — means the brand doesn't list it