2XR 1st Stage

Product No: 416407


The R25-VR first stage is included in the regulator range by Mares for its simplicity and lightness. Its user-friendly piston-controlled structure is totally reliable and is also produced in the oxygen compatible version.

Product Information


Mares has included the R25-VR first stage within its product range, due to its simplicity and lightness. Having a very simple structure, it is totally reliable and is also marketed in its Oxygen compatible version. Therefore it can also be used for the use of stages with high percentages of oxygen. Having the AST system too, it can be disassembled in the water and inserted on another stage without being flooded.

The key features of the R25-VR Technical Regulator are:
• Very light: 432 g. Robust and compact
• Easy cleaning and maintenance
• Piston control
• Very simple and reliable
• DIN only
• AST - Auto Sealing Technology. Keeps the first stage dry. Reliability without any compromises. The system is automatically activated by air. Tested with oxygen and low temperatures in demanding environments. Patented system


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.