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Buoyancy Compensator (BCD) Styles and Features

By , About.com Guide

A buoyancy compensator (also known as a buoyancy control device, BCD, or BC) has two basic functions in scuba diving. It allows a diver to control his buoyancy, and therefore his depth, during a dive, and it attaches the tank to the diver.

While all buoyancy compensators share these common functions, they accomplish the functions in a startling variety of ways. From the differences between vest-style and back-inflating buoyancy compensators, to the various kinds of accessory pockets, scuba divers should have a clear understanding of the different styles of BCs before purchase. Here are twelve common features of BCs to consider.

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  1. Inflation StyleCressi Start and Aqualung Libra Buoyancy Compensators
  2. LiftPhotos of the Cressi Back Jac and Cressi Aqua Pro 5
  3. Integrated Weight SystemsPhotos of the Cressi Aqua Pro 5, Oceanic Aeris and ScubaPro Equator Buoyancy Compensators.
  4. Trim Weight PocketsPhotos of the Cressi Aqua Ride and Aqualung Zuma Buoyancy Compensators
  5. Dump Valves
  6. Integrated Alternate Air SourcePhotos of Integrated Alternate Air Source Regulators for Buoyancy Compensators
  7. D RingsScubaPro Geo and Cressi Aqua Ride Lady Buoyancy Compensators
  8. Light Weight and Easy to PackPhotos of the ScubaPro Geo, Cressi Flex in the Sea, and Aqualung Zuma Buoyancy Compensators
  9. Back Plate and WingHollis Wing and Back Plate
  10. Accessory PocketsScubaPro and Aqualung Buoyancy Compensator Pockets
  11. Chest Straps
  12. Women's Styles
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