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Welcome to Dive Gear Reviews, a comprehensive guide to scuba diving equipment. Scuba diving is an expensive pursuit, so looking up reviews for a particular article of equipment is a wise precaution before investing any hard-earned money in it. However, consumer reviews may or may not be written by an experienced diver, and magazine reviews could be suspect due to the advertising ties of the publication in question. Dive Gear Reviews provides cross-referenced reviews assembled by an expert, making it possible to see at a glance what multiple sources said about a particular piece of scuba equipment. If one magazine loved a scuba regulator or a dive computer, but the consumers hated it, that information will be found here.

Aqua Lung Dimension i3 Scuba BCD Review

Written by Dive Gear Reviews Editor. Comments Off on Aqua Lung Dimension i3 Scuba BCD Review Posted in: BCDs, Over $500

*Note: In the United States, Aqua Lung often goes under the brand name “Sea Quest.” This review therefore applies to the Sea Quest Dimension i3 BC, which is the Aqua Lung BC under another name.

Aqua Lung’s Dimension i3 is a high-end, back-inflating BC utilizing Aqua Lung’s i3 technology. In this way, the Dimension i3 is occupying the same high-end, high-tech niche in the BCD market as the Mares Dragon AT BCD, although Aqua Lung’s i3 technology is very different from the pneumatic system employed by Mares. Aqua Lung instead uses push-rod technology, an idea borrowed from the aircraft industry. The inflator control is permanently attached to the waist, thus eliminating one more potentially errant hose. The inflator works on a simple lever system Raise the lever and the air cells inflate. Push it down and the BCD deflates. The BCD retains manual inflation through a short, shoulder-mounted hose.

Another advanced feature is the “Wrapture,”  a wraparound backpack-style means of securing the air cylinder in place of the traditional tank strap. The Dimension i3 also has an octo-pocket, a feature coming into fashion with new BCDs. The octo-pocket is a strap for securing the alternate air source, in this case located on the top-right of the Dimension i3’s waist. The integrated weights use snap-and-release pockets, and can carry 20 lbs (9 kg), plus an additional 10 lbs (4.5 kg) in non-ditchable trim pockets. Total lift for the Aqua Lung Dimension i3 is 50 lbs in the larger versions. Cargo-carrying for the Dimension i3 takes the form of four D-rings and a big roll-out pocket.

Aqua Lung/Sea Quest Dimension i3 BCD

Aqua Lung/Sea Quest Dimension i3 BCD

Some consumers complained that the manual inflation hose looked and felt cheap, but otherwise this BCD has earned high marks from divers. Scuba Diving made it a Tester’s Choice for 2011. Whether it be under the Aqua Lung or Sea Quest label, the Dimension i3 is a top-of-the-line, heavy-duty BCD with many innovative features. A women’s version, the Lotus i3, is also on the market.

Average Price: $595