Twin Balanced Piston Dry Kit 15X

Product No: 416813


The Twin Balanced Piston Dry Kit protects your Mares 15X first stage from icing up when diving in temperatures below 10°C.

Product Information


The Twin Balanced piston is sold as an additional accessory for Mares 15X first stages. The TBP is the most innovative alternative for cold water diving kits.

The Twin Balanced Piston provides a fully insulated first stage, ensuring maximum reliability in both freezing waters and at extreme depths. This technology is extraordinarily responsive to pressure variations and even meets the requirements of the NORSOK U-101 at a depth of 200 m.

With the innovative 'Pistophragm' technology of the Twin Balanced Piston, Mares offers an incredibly responsive system that works perfectly at any depth and water temperature. It is also very easy to assemble and repair. This fully insulated system is the perfect set-up for divers, from those diving in contaminated water situations to adventurous scuba divers under ice.

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.