The scuba octopus or safe second are a standard safe diving practice in case of a primary failure of you or your dive buddy regulator. At Atlantic PRO Divers we only sell the very best octopus and scuba safe second octo inflators such as Atomic Aquatics SS1, Mares, Sherwood & Zeagle Octopus. The Atomic SS1 is the most advanced, highest quality and best performing product of its’ type. It is the first safe second/inflator with primary regulator performance. The innovative design of the SS1 makes it both easy to use and easy to maintain.