Aqua Lung Dimension i3 BCD

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Dive with the scuba BCD that makes buoyancy control a breeze with the Aqua Lung Dimension i3 back-inflate BCD. With Aqua Lung's special design features and patented i3 system, this scuba BCD is comfortable and intuitive. Aqua Lung's Dimension i3 scuba BCD is expertly tailored to deliver an unbeatable diving experience with easy buoyancy control. The i3 buoyancy control system is exclusive from Aqua Lung, and provides one-touch control of the power inflation system. The i3 system eliminates the traditional power inflator on a corrugated hose and replaces it with a control panel located on the bottom left side of the BCD, where your hand naturally touches the base of your BCD. Simply pull up on the lever to inflate, and down on the lever to deflate the air in your scuba BCD. The i3 inflation system allows you to control dumping your air in any swimming position, for the easiest buoyancy control possible on your dive! With back-inflate wings, the Aqua Lung Dimension i3 offers comfort and stability.


  • Patented i3 buoyancy control system
  • Wrapture™ Harness -- unsurpassed comfort, stability & security
  • Rolled neoprene neck collar for comfort
  • Sure Lock™ weight pockets are safe and easy to load
  • Eco-friendly built-in instrument and octo holders eliminate need for clips
  • Rear inflation for easy trim control and freedom of movement
  • Grip Lock™ tank band is secure and easy to use


  • Pull down oral inflator for increased safety 
  • Bladder retraction system pulls the bladder wings closer to the BCD unit to streamline the system
  • Adjustable chest strap
  • Octo-pocket and Gauge pocket to keep hoses streamlined while diving
  • Dive knife attachment points
  • Four angled, stainless steel D-rings and one plastic D-ring for diving accessories
More Information
Product SKU 30840X
Brand Aqua Lung
Eligible for Free Shipping Yes
BCD Body Type Back Inflate
BCD Weight Integrated Yes
Travel-Friendly? No
BCD Number of Pockets 1
Lift Capacity (lbs) 50

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