IST Non-adjustable Octopus Scuba Diving Regulator
The IST non adjustable octo is perfect for that back up air when you need it. A much safer option than "buddy breathing" in an emergency. Light weight and easily stowed for when you need it. Available in neon yellow for use as an easy-to-locate octopus, and also in black or blue for use as a primary second stage. A good low-cost option for both entry level and experienced scuba divers.