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


Fedex calculated rates for any order under $100 or for any expedited order.
Free shipping on any order over $100.



Any order placed by 12:00 PM EST Monday - Friday (excluding public holidays) will ship within 3 - 5 days. If you’ve placed an order after 12:00 PM EST or on a weekend, your order will process on the next business day. 

Orders placed with expedited shipping will ship out the same day if the orders are placed by 12:00 PM EST Monday – Friday (excluding public holidays)



All products may be returned for a full refund to the original payment method, provided

the items are returned to us within 30 days of you receiving the products and are in new 1st quality conditions. 

To initiate a return please reach out to us Monday - Friday 9:00 am - 5:00 pm EST at 1-800-874-3236, or email us at .



Please ensure that any product you wish to return is unused, in its original packaging and has all tags still attached. You agree that it is at the sole and absolute discretion of Mares to determine if the product has been used. Shipping charges on all returns are your responsibility and are not subject to a refund.


  • Returned products must show no signs of use or wear and must be returned in its original packaging (e.g., plastic, clam shell,

mesh bag). All tags are still attached, no scrapes on the products, etc.



Unfortunately, we are not able to exchange products. We are able to refund your initial order, but you will have to place a new order online.