Donut Bladder Twin Tank

Product No: 417569


The Donut Bladder Twin Tank is composed of an external bladder in ballistic nylon with a low profile oval corrugated hose. The ideal donut for dives with twin tanks.

Product Information


Divers who have entered the XR world and decided to switch to a double tank will only have to buy this donut. Its circular shape allows air to circulate easily and have the technical diver direct it towards the valves. According to your teaching guidelines, this bag offers you the option of placing the drain valve on the left or right.

The key features of the Donut Bladder Twin Tank are:

• Drains: 6 large grommets, 2 on the top and 4 on the bottom
• 1200D “bulletproof“ ballistic nylon and 600D polyester exterior
• A heavy-duty plastic zipper and slider with elongated teeth
• 4 heavy-duty grommets positioned to allow optimum trim
• A stretchy, low profile, oval corrugated hose
• A K-style inflator with metal buttons
• The mid position of the inflator does not interfere with the 1st stage
• A right and left modular low profile dump valve and blinder
• Extremely streamlined - very stable continuous loop shape


1200D nylon and 600D polyester exterior
Color Kit:


Delivery & Returns


Online purchases on are enabled for Italy, France, Spain, Germany, Austria, Netherlands, Luxemburg, Belgium and Finland. Some products from the catalogue are only available to purchase at an authorised Mares Dealer.

Products shipped in Italy are entrusted to Bartolini couriers. Products shipped in other countries are entrusted to DHL couriers.

Delivery times are 3-5 working days.



If you are not satisfied with your order, you can return it quickly and easily.

You can decide to return any products purchased on within 30 days of delivery. To return items, use the same box they were received in, complete the returns label found here with shipping details and attach it to the box. Remember to insert the delivery number found on page 1 of the delivery documents.


To allow you greater freedom, we have not chosen a courier service with which you need to return the package, you are free to choose your preferred service provider.

Please remember that shipping costs are your responsibility.


You will receive the total refund on the same payment method you used to place your order, within 14 days after your return has reached our warehouse. 


At the moment, we cannot offer exchanges on our products. If you would like a different size, please return the article for a refund and purchase a new size. If you still have any doubts, you can write us an email at, our Customer Service team will be happy to help.