AST Dry System (INT)

Product No: 416811


AST anti-infiltration technology for INT connections, easy to fit. Keeps the first stage dry and clean at all times. Pneumatically activated. Will not affect the performance of your regulator.

Product Information


AST anti-filtration technology for INT connections, easy to fit. Keeps the first stage clean and dry at all times. With pneumatic activation.
It can be used with Nitrox mixtures. It can also be used for diving in cold water.
Suitable for the following Mares first stages:
- 82X
- 52X
- 15X
- R2

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.