Now in its 5th generation, The Scuba Air2 inflator Regulator delivers air as smoothly as most primary second stages, making it a favorite of divers who value high performance and ease of use. Scubapro’s combination octopus/inflator design puts the Air2 within easy reach at all times, as you're always using it to control descents, adjust buoyancy, and vent air during ascents. Power inflate and deflate buttons are positioned on Top of the housing and are differentiated by color and touch, improving safety on both ascents and descents. An innovative dive/Pre-Dive switch lets you detune the unit when you're not using it, helping eliminate free flows at the surface. The flexible purge cover is large and easy to locate, allowing for quick clearing when it's time to take a breath. Driven to constantly innovate and improve the diving experience, Scuba builds flawless equipment for the work, sport, and lifestyle of people whose passion is found below the surface. Large bite tabs on the mouthpiece a secure grip in high-stress situations; weighs one pound; one-year .