2XR 1st Stage

Product No: 416407


The Mares 2XR First Stage offers sturdy, cold-water performance with easy maintenance. Featuring AST for dry, reliable dives and versatile connections, it's ideal for divers seeking dependability.

Product Information


The Mares 2XR First Stage – your go-to choice for uncompromised performance, especially in cold waters. Sturdy, compact, and remarkably simple to maintain, this first stage is designed for the diver who values dependability above all. Featuring the groundbreaking AST (Auto Sealing Technology), it ensures your equipment stays dry and functional, automatically activating with air to seal against water and contaminants. Oxygen compatible and versatile with both G5/8 and M26 connections for up to 300BAR, it's perfectly paired with the HR Second Stage for a seamless dive experience. Ideal for stage setups, the 2XR First Stage by Mares is your ticket to diving with confidence, even in the most demanding environments.

• Very simple and reliable
• Cold water use
• Sturdy and compact • Easy to clean and maintain
• AST- Auto Sealing Technology
Keeps the first stage dry. Reliability without compromise
The system is automatically activated by air
Tested with oxygen in cold temperatures and demanding environments
Patented system
• G5/8 connection, 300 BAR (DIN)
• M26 connection, 300 BAR (NITROX)
• Certified with the HR Second Stage


First stage weight DIN:
431 g / 15 oz
First stage weight NX:
434 g / 15.3 oz
High pressure ports:
1 [7/16" UNF]
Low pressure ports:
4 [3/8" UNF]

Delivery & Returns


Online purchases on mares.com 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 mares.com 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 shop@mares.com, our Customer Service team will be happy to help.