Mares 25XR First Stage Only

Mares introduces its Extended Range (XR) Gear Line. Bridging the gap between recreational and technical diving. The 25XR first stage is extremely reliable and environmentally sealed- great for keeping out water. With an interchangeable port design to offer perfect SPG instrument positioning. The first stage regulator is made from a nickel-plated marine grade brass and has a solid compact one-piece body. The balanced diaphragm design which is environmentally sealed. The diaphragm membrane transmits the pressure changes to the internal mechanism eliminating the need for the surrounding water to enter the intricate mechanism. The benefit of this type of first stage design is that none of the internal parts are exposed to contaminants such as salt, sand, chlorine or pool acids. These environmental contaminants cause corrosion and mineral deposits to form on the internal mechanism deteriorating regulator performance.

Another unique feature of the first-stage is the Dynamic Flow Control (DFC). The DFC system minimizes the intermediate pressure drop during inhalation, making it possible to use a simpler more reliable second stage. No type of manual adjustment of the second stage is necessary due to the consistency derived from a first stage that guarantees a stable flow of air, even under extreme conditions.Also the 25XR First Stage Regulators HP valve uses Mares Advanced Coating Technology: The new valve in the X" systems increases durability by an astounding 600%, even under the most extreme conditions.

This DIN dedicated regulator with its environmental seal makes it an excellent choice for cold water diving. The first stage comes equipped with 2 LP ports 3/8" UNF threaded that are angled down for optimum hose routing and 1 HP port (IPD: Interchangeable Port Design) with 7/16" UNF threads. First stage can be purchased with left or right hand porting depending on your dive rig configuration. Regulator is designed for use with Trimix, Heliox, Helitrox gas mixtures, it is extreme reliability with the highest safety in its design. Maximized breathing comfort, extreme depth, engaged dives & mixed gas diving (Helium, O2, Nitrogen) capable. Excellent choice for twinset use but equally suitable for single or stage cylinder configurations. Dual configuration: fits all certifying agencies from RSTC to DIR divers and all XR uses including cave. First stage regulator weighs 26.75 oz. (758 g).