The Sherwood Gemini gives you exceptional breathing performance without any in-water adjustments required. Made with durable materials, the Gemini gives you superior performance that you would expect from a primary regulator. The Gemini replaces the conventional BC power inflator and backup second stage regulator. With this two-in-one breathing device, an extra hose is eliminated, giving you a less cumbersome dive. The power inflation, oral inflation, and exhaust trim valve are designed to remain similar to standard BC inflators, so you are already familiar with the Gemini's operating system. Combining your inflator devise (that you use on every dive) with your octopus Regulator assures your ability to react properly when an out-of-air emergency occurs. Be a safe diver with the Gemini Breathable Inflator. The Gemini comes equipped with an Owner's Manual; a 3/8" Threaded High-Flow Quick-Disconnect Hose and is covered by a Limited Lifetime Warranty.