Why A Family Of Octos? Most manufacturers produce just an “economy” and a “performance” octopus model Yet, even their high-end octo cannot come close to matching the performance of the Atomic family of safe seconds. Each Atomic octopus is designed and precision-built to perform as perfectly as its primary model counterpart. So when you need it, you know exactly what to expect All Atomic Octopus models come with a standard extra-long 36” hose. Cloning Can Be A Good Thing An Atomic octopus reduces stress in emergency situations. In an emergency, why would you or your buddy breathe from an inferior regulator? An octopus should breathe easy. All Atomic second stage primary models are available as dedicated safe seconds with high visibility yellow covers and an extra-long 36" hose. B2 Octo with Comfort Swivel The B2 octopus is easily the most comfortable and easy to use safe second ever designed with all-Titanium construction for corrosion protection and light weight. The B2 Octo delivers all the patented Atomic features of the B2 primary model, including the Comfort Swivel as standard. The Comfort Swivel is the perfect design aspect for a safe second.