Aqua Lung

Aqua Lung Calypso Regulator

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RRP £156.00
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Availability: Ships in 2-3 Days

Winner of Scubalab’s 2017 testers choice award for Regulators, the Aqua Lung Calypso is the industry standard for entry-level Regulators.

Winner of Scubalab’s 2017 testers choice award for Regulators, the Aqua Lung Calypso is the industry standard for entry-level Regulators.

Aqua Lung Calypso Regulator

Winner of Scubalab’s 2017 testers choice award for Regulators, the Aqua Lung Calypso is the industry standard for entry-level Regulators.

Robust and lightweight, it’s perfect for beginners or for use in commercial dive centres. Noted for its high reliability the Calypso’s high-flow piston design is super simple, ensuring maintenance is easy and required less often.

Featuring Aqua Lung’s unique Comfobite mouthpiece the Calypso is comfortable on long dives. The silicone bridge sits across on the top of your palate for support reducing jaw fatigue so you can enjoy longer dives.
The Latest version of the Aqua Lung Calypso features an adjustable Venturi dial. This allows you to eliminate oxygen wastage when the mouthpiece isn’t in your mouth. It also gives you a level of progressive breathing control far beyond that of other budget offerings so you can tune it for how you like to dive.

Key Benefits

First Stage:

  • Compact Design - Compact and light, the Calypso is easy to store or travel with. Great if you’re a recreational diver looking to travel or a commercial Dive site who need to store a lot of regs.
  • High Reliability. High Performance - Aqua Lung’s simple high-flow piston design combines easy, clear breathing with rugged dependability. With few components making the Calypso, there’s nothing to go wrong.
  • Consistent Breathing - The large diameter piston first stage allows for maximum consistent airflow to your second stage.
  • Protection From Polluted Air - The Yoke version of the Calypso features a second filter to provide increased protection from polluted air. It can be easily replaced without dismantling the yoke for easy maintenance.

Second Stage:

  • Comfobite Mouthpiece - Aqua Lung’s Comfobite mouthpiece features their patented mouth bridge. Sitting across the roof of your palate it reduces jaw fatigue allowing you to dive for longer in comfort.
  • Quick, Easy Mouthpiece Changes - The mouthpiece can be easily clipped out of the 2nd stage for quick swaps.
  • Low Maintenance - With few components and a simple design maintenance is exceedingly easy.
  • Venturi Knob - Unlike many budget offerings, the latest version of the Calypso regulator features a Venturi Knob for progressive adjustment. This stops you wasting oxygen when the mouthpiece isn’t in your mouth and allows you to get the breathing feel you prefer.
  • Robust Purge Cover - The polyurethane purge cover offers significant abrasion and tear-resistance, allows for easy water purging and decreases inhalation effort for a fun dive experience.
  • Durable Construction - Heavy-duty polycarbonate construction makes the second stage tough. It’s ready to handle anything you throw at it whether you’re a recreational diver or it’s taking the abuse of a commercial dive centres.

Who is the Aqua Lung Calypso Regulator for?

The Aqua Lung Calypso is an incredibly good value regulator that performs far beyond what you’d expect for such an inexpensive reg. Perfect for beginner divers, the Calypso also is a mainstay of commercial dive centres. It’s robust, easy-to-use and high performing.

Who are Aqua Lung?

Aqua Lung introduced the world to Scuba diving equipment more than 60 years ago. Aqua Lung manufacture good quality Scuba diving equipment including regulators, masks and high performance torches. They pride themselves in making diving equipment which allows divers to explore the ocean safely and make memorable moments.

Aqua Lung Calypso Regulator Specifications
1st stage
1st stage technology Piston, unbalanced
Mechanism In line
Maximal working pressure 232 bar in DIN & yoke version
ACD system Transformation kit available
Number of HP ports 1 (7/16" UNF)
Number of MP ports 4 (3/8" UNF)
Medium Pressure 8.8 bar to 10 bar (127 psi to 145 psi)
Flow rate (surface, hose) 1300 l/min (45.9 cubic feet/min) HP = 200 bar (2900 psi)
Body Marine brass, bright chrome plating
Spring Stainless steel
Conical filter Sintered bronze
O-rings EPDM
2nd stage
2ndstage Unbalanced
Mechanism Demand valve, downstream poppet
Cracking effort 2.5 to 4 mbar (36 to 58 mpsi)
Venturi adjustment knob Yes
Box bottom, deflector, Venturi vane ABS
Purge cover Polyurethane
Mouthpiece, exhaust valve, diaphragm Silicone
Poppet Polyurethane
Adjustable crown Stainless steel
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Aqualung Regulator Comparison


Core Supreme

Legend LX Supreme

Legend Supreme

Legend Glacia


Mikron ACD

Balanced Diaphragm





Overbalanced Diaphragm 




Connections - Yoke


Auto-Closure Device(ACD)


Master Breathing System (MBS)






Environmentally Sealed



Number of HP Ports







Number of MP Ports







Cold Water Ready



Flow Rate at 200b






1450 l/min

Pneumatically Balanced Second Stage


Venturi Control



Opening Effort




Weight - Yoke











Work of Breathing

Avg 0.84 joules/litre

Avg 0.74 joules/litre

Avg 0.74 joules/litre

Avg 0.90 joules/litre

Avg 1.0 joules/litre

Avg 1.1 joules/litre

Nitrox Compatible

Features and Technology

Auto Closure Device (ACD)

Aqua Lungs ACD system keeps water out of the regulator during use with prevents internal corrosion and damage. This makes maintaining Aqua Lung regs very easy, even if you’re diving regularly. 

Comfo-Bite Mouthpiece

Found on Aqualung and Apeks second stages, the Comfo-Bite mouthpiece features a bridge that shields the top of your mouth from the highly filtered air of your regulator preventing dry mouth. 

Master Breathing System

The Master Breathing System combines venturi and opening effort into a single easy-to-use knob. The control has been optimised to make controlling free-flow simple and easy while making mid-dive adjustments to breathing a breeze.


Learn everything you need to know about regulators here

Regulator Buyers Guide


We will take every effort to get you goods to you as efficiently and effectively as possible. All orders placed before 3pm will be shipped on the day of ordering subject to payment authorization and item availability.

Any items which are out of stock will be shipped as soon as they become available. If this causes a delay in your delivery, you will be notified and your order dispatched as soon as possible. If any items are unavailable, you will be contacted and offered a replacement or refund.

UK Delivery

If your order total is under £45 then you can choose one of the following options. Please take note of the availability on the product page and your confirmation email - if the availability is not 'In Stock' then the order will be shipped according to your delivery preference once it arrives into stock. For example if the availability is 'Ships in 3-5 Days' because it isn't in stock and has to come from Italy, and you've chosen 'DPD Next Day Delivery' then the item will take 3-5 working days and then be shipped on a next day delivery.

  • Standard Delivery - £3.95 (1-3 Working Days)
  • 24 Hour Delivery - £4.95
  • DPD Next Day - £5.95 (Guaranteed Next Working Day + 1 Hour Delivery Window)

If your order total is over £45 then you can choose

  • Standard Delivery - FREE
  • 24 Hour Delivery - £4.95
  • DPD Next Day - £5.95

Please be aware that the prices above are for areas classed as "UK Mainland" by DPD which does NOT include offshore islands, Scottish highlands or Northern Ireland.

Non-UK Delivery

Our website has a comprehensive postage system which takes into account the weight of your delivery and the destination address - to get a quote for your order please add the products you'd like to buy to your basket, go to the basket page and fill in the "Estimate Shipping & Tax" section to get the price.

BFPO Addresses

This shipping method is available for British Forces Posted Overseas and addresses only. Shipping is as with all other UK mailing but please check to see that the size and weight of your order does not exceed maximums for your BFPO destination number by checking with the BFPO website.

Please note that once we have shipped the item and handed over to the BFPO service we have fulfilled our contract and delivery responsibility. All queries and problems with delivery must be taken up by yourself with BFPO and any claims must be handled between yourself and them.

Restricted Products

Please be aware that some products have restrictions on which countries we can send them to. Please enquire ahead of time if you require an order dispatched outside the EU and we can advise.

VAT Exempt

If this applies to you, the price you will pay for the goods will automatically be adjusted to remove the VAT element - you MUST choose the correct country on checkout for this to apply. We CANNOT refund the VAT once the order is completed.

You can also avoid paying VAT if you are having your goods sent to you in the UK, but are taking the goods abroad permanently within 3 months of making the purchase. You will have to pay the VAT with your order and reclaim the tax per relevant regulations - please be advised we cannot help with this process.


We stock the vast majority of products listed on our website in our Whitley Bay superstore and warehouse and these products are available for same day dispatch & next day delivery.

Due to the huge quantity of products we stock, we offer the ability to backorder products which have gone out of stock and less popular products which we don't carry stock of.

Depending on the brand these backorder products can take anywhere between 1 and 10 days to arrive into stock. We estimate 3-5 working days on average but please be aware that products from Mares and Scubapro are shipped from Italy & Germany respectively so can take a little longer.

As always if you aren't sure or want a more accurate estimate just give our team a call or email!


You can return any product that is in an UNOPENED, RE-SALEABLE condition within 30 days as long as it is not marked as clearance. Please contact us before doing this so we can confirm this ahead of time - we recommend using a recorded delivery service for any returns as you will be responsible for ensuring it reaches us.

Please get in touch to confirm a return by email or phone before sending anything back. When sending a return it is important that you include:

  • Your order number
  • Your name & a contact telephone number
  • The reason for return

We will try and get your return processed as quickly as possible but if you don't send this information it can delay the return.


If you have ordered something and it doesn't fit then we can exchange for a more suitable size, stock permitting, but you will have to pay the return postage.


Our customers have the right to cancel their orders within 14 days unless their order has been dispatched. After the order has been dispatched, it is the customers responsibility to return the item in a saleable condition and receieve either a full or partial refund.

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