The Atomic Z2 Octopus is a Zirconium plated octopus to provide excellent corrosion resistance which is 3 times more durable than a chrome plated octopus. A titanium second stage lever and seat saving orifice are also added. The Z2 from Atomic is their most compact octopus and includes automatic flow control, a rapid adjustment knob for de-tuning and a silicone mouthpiece for a comfortable fit during extended use. The Z2 Octopus includes a 36 inch hose.