Zeagle"s regulators are US made, built under strict controls for quality in our own factory, using state of the art equipment and procedures. Your regulator is one of your most important pieces of gear. No matter what kind of diving you do, you can do it better with Zeagle. The Zeagle Z Octopus Second Stage is Lightweight, Compact and Comfortable. Its design features include Diver Adjustable Inhalation Resistance, Venturi (Free-Flow) Control, and Built in Heat-Sink for added Freezing Resistance. The Venturi Control Lever allows the diver to set the Octopus 2nd stage in the Pre-Dive Position until needed. This is very important in Octopus Regulators, since the Pre-Dive Position is much more resistant to Venturi-Free-Flows that can sometimes result in significant air-loss during a dive. Over the years, evolutionary design changes have created a regulator that is Resistant to Free-Flow on the surface, with incredible smoothness and ease of breathing underwater. This Pneumatically Balanced Downstream Demand Valve Second Stage Regulator is manufactured from Anodized Aluminum, Flexible and ridged Thermoplastics, Elastomeric Polymers and Silicone Rubber. The Z Octopus comes with a Yellow Hose/Cover for Easy Identification in an Out-of-Air Emergency and is equipped with a 36" (91.4 cm) MiFlex Hose with 3/8" Threads. The Octopus Regulator weighs 8 oz (213 g) without the hose, comes with a Comprehensive Owner"s Manual and is covered by a Limited Lifetime Warranty.