• Oceanic Chute 2 BCD, scuba diving bcd

    Oceanic Chute 2 BCD. Kevlar rear inflation for better buoyancy. 6 stainless steel D shackles for attaching additional equipment. Integrated removable weight pockets along with 2 non removable weight pockets. BCD in very good condition. Size Medium.
    AU $173.00
    0 bids
    or Best Offer
    Ending Saturday at 17:13 AEDST2d 17hBrand: Oceanic
  • Aqualung Dimension i3 BCD - Reduced Price

    Item is USED! Has been used approx 40 dives. I thoroughly washed it after every dive with bcd/wetsuit shampoo, and used bcd conditioner every month. Brilliant BC for casual/novice diver. Eliminates the traditional inflator that dangles at the end of a corrugated hose.
    AU $275.00
    0 bids
    AU $15.90 postage
    Ending Thursday at 13:07 AEDST13h 14m
    or Best Offer
    Brand: Aqua Lung
  • seaquest bcd medium

    good condition pick up bonnyrigg or nth syd
    AU $25.00
    0 bids
    or Best Offer
    Ending Thursday at 20:03 AEDST20h 10mLocal pickup
  • Oceanic Biolite lightweight wing BCD for tropics travel & streamlined diving VGC

    Diving in the pacific this season?. Want to take your own gear?. Oceanic Biolite is one of the lightest (2.5kg) and most compact BCD's on the market. I bought this for use in Fiji as there was a weight restriction on the plane to Taveuni.
    AU $150.00
    0 bidsEnding Friday at 11:55 AEDST1d 12hLocal pickupBrand: Apollo
  • Oceanic Chute 3 BCD, scuba diving bcd

    Oceanic Chute 3 BCD. Rear inflation for better buoyancy. 6 D rings for attaching additional equipment. 2 permanent weight pockets and 2 removable weight pockets. Stainless steel BCD knife attached. Integrated backup reg and inflater valve. Padded lumbar frame for comfort. Size Medium. BCD in very good condition.
    AU $173.00
    0 bids
    or Best Offer
    Ending Saturday at 17:22 AEDST2d 17hLocal pickupBrand: Oceanic
  • Scubapro Hydros Cargo Thigh Pocket ~ Free Shipping

    The Hydros Pro thigh pocket hangs just below your Hyrdos weight pockets, attached with a D ring and secured with a wide webbing strap. Warranty By Australia Scubapro. Attaches to your HYRDROS PRO D-ring and secures with a thigh strap.
    AU $49.00
    Free postage
    Brand: Scubapro
    17 watching
  • SeaQuest Wave BCD - Size Medium - Good Condition

    For sale is my spare BCD. In good condition, barely used, only used occasionally for friends joining me for a dive. Medium size but has plenty of adjustment. Can be collected from central Sydney or Canberra. Otherwise, can send at buyers expense.
    AU $75.00
    2 bidsEnding Saturday at 22:30 AEDST2d 22hLocal pickupBrand: Sea Quest
  • Sea quest BCD scuba gear tank vest with removable weights

    Excellent condition just been in storage for past 5 years with no use.
    AU $200.00
    0 bidsEnding Saturday at 10:51 AEDST2d 10hLocal pickupBrand: Sea Quest
  • Oceanic 5lb Non Dumpable Weight Pockets (Fits to BCD Tank Cam Band) - PAIR

    These non dumpable weight pockets are great for adjusting trim on your BCD, one or both can be fitted to the BCD's Tank Cam Band. Each will hold a max 5lb of weight. See Pictures. Zippered pocket for secure closure.
    AU $24.00
    Free postage
    eBay Premium ServiceBrand: Oceanic
  • Oceanic Atmos BCD Scuba Diving - Size SMALL

    Very light weight, great fit and easy to maintain neutral buoyancy.". The Atmos is a durably-constructed yet stylish looking, full-featured hybrid air-cell BC. See Picture 5 for Sizing Chart for size information.
    AU $409.00
    Free postage
    eBay Premium Service
    2 watching
    Brand: Oceanic
  • Oceanic Atmos BCD Scuba Diving - Size XL

    Very light weight, great fit and easy to maintain neutral buoyancy.". The Atmos is a durably-constructed yet stylish looking, full-featured hybrid air-cell BC. See Picture 5 for Sizing Chart for size information.
    AU $419.00
    Free postage
    eBay Premium ServiceBrand: Oceanic
  • Oceanic Hera BCD

    The Hera BC incorporates our patented. Adjustable Positioning System (A.P.S.). best fitting BC you’ll ever wear. Lift capacity: XS 25lb; SM 31lb; MD 35lb; LG 42lb ADJUSTABLE POSITIONING SYSTEM. QLR4 Integrated Weight System 20lbs plus dual 5lbs trim.
    AU $599.00
    Brand: Oceanic
    AU $50.00 postage
  • Oceanic Flex BCD

    BCD is available in 7 sizes from X-Small to 2X-Large. The Flex Jacket Style BC is made with Patented BioiFlex material- a "living fabric" that stretches, flexes and conforms to your body. The Flex BCD has a 1,000-Denier fadeless body material for strength and durability.
    AU $599.00
    Brand: Oceanic
    AU $50.00 postage
  • Scubapro BCD ACCESSORY KIT ~ Free Shipping

    Warranty By Australia Scubapro. The White Tip knife has a 6.6cm 304 grade hard tempered stainless steel blade with a standard cutting edge as well as a serrated edge. The plastic sheath incorporates a sliding lock which can be easily operated with one hand.
    AU $158.00
    Free postage
    Brand: Scubapro
    Save up to 8% when you buy more
  • Oceanic Excursion Large BCD

    Your weights stay in position throughout the dive and do not shift around affecting buoyancy or position in the water. The weight pouches are simple to load and easy to release. Equipped with two trim weight pockets and Oceanic's QLR Integrated Weight System that can accommodate up to 30 lbs.
    AU $650.00
    Brand: Oceanic
    AU $50.00 postage
  • Oceanic BCD size Small

    Mint condition, only used for 5 dives Rrp $1000
    AU $500.00
    0 bids
    or Best Offer
    Ending 25 Dec at 13:35 AEDST5d 13hBrand: Oceanic
  • SHERWOOD Silhouette BCD - XL

    After a BCD that's got the goods, and won't kill the budget! Look no further. Silhouette BCD Size Chart. Sherwood's easy oral and power inflator.
    AU $199.00
    Brand: Sherwood
    Free postage
  • Scubapro Scuba diving - Rebel BCD light weight 80% new - bargain

    Scubapro Scuba diving - Rebel BCD light weight 80% new - bargain Scubapro Rebel BC - M size. An economical BC for beginner as well as leisure divers.
    AU $350.00
    Local pickup
    or Best Offer
    Brand: Scubapro
  • Seaquest Wave Ladies BCD Sml

    SeaQuest Wave ladies BCD size sml in excellent condition. Has been used a handful of times. Hasn’t been used since last service. I mostly dive overseas and it’s too hard to take gear when coupling a dive trip with other activities (cold weather gear, hiking equipment etc.) on a long trip which is why I’m getting rid of it. The Aqualung SeaQuest Wave BCD is a tradition style jacket BCD, perfect for entry level. Comfortable, super easy to adjust underwater, eyes closed whilst focusing on cool fish and other amazing things.
    AU $190.00
    Local pickup
    or Best Offer
    Brand: Sea Quest
  • Cressi Aquapro BCD - Size L

    AQUAPRO BCD. Gravity weight pockets use large Fastex buckles. 2 spring-clip holding rings. 2 stainless D-rings. Two zippered cargo pockets.
    AU $500.50
    Brand: Cressi
    Free postage
  • Diving Gear Scubapro Ladyhawk BCD, Air 2 Alternate Inflator, Regulator + More!

    Scubapro Ladyhawk Buoyancy Compensator Diving Vest with Air 2 Alternate Inflator plus Octopus Regulator Kit. All diving gear and accessories in excellent condition. Scubapro Ladyhawk BCD includes 2 x Scubapro Weight Pouch.
    AU $760.00
    Brand: Scubapro
    AU $40.00 postage
  • Seaquest Diva LX BCD - Women's M/L

    AU $350.00
    0 bids
    AU $25.00 postage
    Ending Thursday at 19:19 AEDST19h 27m
  • BCD for Technical or Demanding Divers Only! AROPEC NOUVO size L

    AROPEC NOUVO. BCD For Demanding Divers Only! In order to keep balance for divers, this BCD is equipped with two rear trim pockets located on two sides of the air tank.Each pocket holds up to 2.5kg. 2 X 2.5kg =5kg.
    AU $314.95
    Was: Previous priceAU $349.95
    AU $24.00 postage
    or Best Offer
    Only 1 left!
  • Scuba Safety Sausage Yellow * FREE SHIPPING

    AU $42.00
    Free postage
    2 watching
  • Alpha Scuba Diving Harness/OMS

    This comfort OMS Back Pad will fit on any of the OMS back plate harness systems. Alpha Harness with OMS stainless steel back plate and OMS pad. OMS's superior de-burring process eliminates back plate sharp edges and prevents abrasion to webbing and BCs.
    AU $250.00
    0 bids
    or Best Offer
    Ending 23 Dec at 20:36 AEDST3d 20hLocal pickup
  • Oceanic / Aeris Jetpack - Weight Pocket Replacement - PAIR

    Here's your chance to replace them for a song! Sold in Pairs. Why the savings?. We're all divers too, and we're here to help you, a small team with personal service.
    AU $9.98
    Brand: Oceanic
    AU $7.90 postage
  • Scuba diving BCD Power inflator Service Tool with O-Ring Kit

    Includes a free slotted nut driver used to service scuba valves. 1/2" hex wrench for the low pressure quick release nipple.
    AU $24.99
    Free postage
    7 watching
  • Scubapro Hydros Knife Mount ~ Free Shippig ~

    This plate attaches your Hydros Pro and allows you to add accessories, such as a BCD knife. Warranty By Australia Scubapro. Includes mounting plate, washers, two stainless steel screws, a carabiner and thigh strap.
    AU $24.90
    Free postage
    Brand: Scubapro
    15 sold
  • WILCOMP Scuba diving, Survival, Emergency, Life Jacket Whistle WIL-WH-01O

    The Must for Scuba Diving. The whistle has a belt clip. Can be easily attached to any Life Jacket, BCD or clothing.
    AU $9.00
    Free postage
    eBay Premium Service
    39 sold
  • Scubapro X-Tek Form Harness Backplate Wing Single System (EX DEMO POOL USE ONLY)

    The Scubapro X-Tek systems are aone size fits all. Generally these systems aren't the best choice for very small people.
    AU $895.00
    Brand: Scubapro
  • HALCYON BCD INFINITY SINGLE BACKPLATE / WING SYSTEM ~ Free Shipping

    AU $1,059.00 to AU $1,133.00
    Free postage
    Brand: Halcyon
    2 watching
  • Cressi Start BCD

    AU $400.00
    Brand: Cressi
    Free postage
    4 watching
  • TUSA Liberator BCD Dual Occy US Divers Reg and Weight Belt

    Dual Occy US Divers Reg and Weight Belt. Liberator BCD.
    AU $389.00
    Local pickup
    or Best Offer
    Brand: TUSA
  • Zeagle Ranger LTD BCD - Large

    AU $450.00
    0 bids
    AU $35.00 postage
    Ending 24 Dec at 2:18 AEDST4d 2h
    or Best Offer
    Brand: Zeagle
  • Scubapro Hydros Mini D Ring ~Free Shipping ~

    Warranty By Australia Scubapro. Includes the mounting plate, mini D-rings and two stainless steel screws. We will do whatever possible to resolve any issues or concerns.
    AU $24.90
    Free postage
    Brand: Scubapro
    22 sold
  • Dive Rite Transpac XT + Integrated Weight Pockets + Tech Butt Plate...NEW.

    Size XL.
    AU $595.00
    Brand: Dive Rite
    AU $25.00 postage
  • BCD Scubapro Glide-X ( Large ) ~ Free Shipping

    Warranty By Australia Scubapro. • Lift Capacity (kgs) - L / 38. • Durable 420-Denier nylon air cell construction. Mistakes do happen or difference of opinion is possible. We will do whatever possible to resolve any issues or concerns.
    AU $549.00
    Free postage
    Brand: Scubapro
  • SCUBAPRO WEIGHT POCKET Pair (ALL SCUBAPRO BCD MODELS)~ Free Shipping

    SCUBAPRO WEIGHT POCKET (ALL SCUBAPRO BCD MODELS)
    AU $129.00
    Free postage
    Brand: Scubapro
  • Scubapro Hydros BUNGEE Set Short or Long ~ Free Shipping ~

    AU $29.00
    Free postage
    Brand: Scubapro
    14 sold
  • Zeagle Tech Weight Integrated BCD

    AU $550.00
    Local pickup
    or Best Offer
    Brand: Zeagle
  • BCD Scubapro Hydros Pro Men's (ARMY GREEN)~ FREE SHIPPING

    AU $970.00 to AU $1,220.00
    Free postage
    Brand: Scubapro
  • Scubapro BCD HydrosPro Ninja Pocket ~ Free Shipping

    Warranty By Australia Scubapro. When not in use, the pocket rolls up neatly under the weight pocket. Includes the pocket, the accessory mount plate, and two stainless steel screws.
    AU $54.00
    Free postage
    Brand: Scubapro
  • Mirage Dive Safety Sausage

    AU $7.90
    AU $4.00 postage
  • 50mm webbing Harness weight belt 50mm 2" webbing - all / any length

    So you are buying much smarter at OEM pricing. - 2.6mm thick, so much thicker than "seat belt" 1.2mm webbing. This webbing is specially made for scuba and diving use by being - therefore it is much more durable than seat belt webbing.
    AU $8.70
    AU $7.90 postage
    or Best Offer
  • ScubaPro BCD Knighthawk,Last Version, Size M ~ Free Shipping

    AU $650.00 to AU $820.00
    Free postage
    Brand: Scubapro
  • Dive Rite Side Mount Wing - Good Condition

    Has not been used for some years and will therefore need to have the inflators serviced. Bladders and exterior in good condition. Pick up from Central Sydney or Canberra. Will send at buyers expense, please contact before paying in order to invoice correctly for postage costs.
    AU $60.00
    0 bids
    or Best Offer
    Ending Saturday at 12:44 AEDST2d 12hLocal pickupBrand: Dive Rite
  • SCUBAPRO BCD HYDROS PRO COLOUR KIT ~ Free Shipping~

    AU $59.00
    Free postage
    Brand: Scubapro
Got one to sell?

Got one to sell?

Get it in front of 160+ million buyers.

Buoyancy Compensators (BCD)

When you are scuba diving or snorkeling underwater, the world stops for a moment, and there is a sense of peace as water, fish, and even coral and other sea flora surround you. Buoyancy compensators or buoyancy compensator devices (BCDs) are a critical part of anyone's scuba diving or snorkeling equipment, which needs to be complete to comfortably enjoy the experience.

What are BCDs?

BCDs are the basically the scuba diver or snorkeler's version of a life jacket, except that the buoyancy can adjust so that you are at the right position in the water, be it fully submerged or floating above the surface. You make this adjustment via reducing or increasing the amount of air in the device. It also serves as the piece of gear that holds your scuba or snorkeling tank.

Types of BCDs

Jacket-style BCDs are the most commonly found BCDs, and you wear them on your dive suit just like a jacket that wraps around you (along with the air bladder). These usually have storage pockets and some have pouches with weight integration. This type of BCD is suitable for stability in any position, and it is the most suitable for new divers. The second type you may come across is the back inflate BCD, which you still wear like a jacket, but it only inflates at the back rather than all around, helping the diver achieve a flatter horizontal position in the water. Hybrid BCDs combine the strengths of both the types, allowing for the same versatility of the jacket BCD but with the ability to flatten out horizontally better like the back inflate type. For even more customisability, divers can also opt to purchase back plates and harnesses separately and put them together as a BCD.

BCD Brands

AquaLung, TUSA, and Mares are all famous brands for BCDs, though Cresi and Scubapro are popular options as well. Besides branded gear, you can also take a look at unbranded or generic BCDs, to see if there are any that fit your requirements. Be sure to get the right size for your body type, and also the best type for your diving needs.

Tell us what you think - opens in new window or tab