The Mares XR Sidemount Regulator Package contains everything you need for a high performance regulator setup in a sidemount style configuration. The package comes fully configured with DGX premium double braided flex or rubber hoses and is Nitrox Ready. Some divers prefer a shorter {60 in | 1.5 m} hose in their configuration, but some divers still prefer the {84 in | 2.1 m} hose, and our package gives you the choice. Hose materials are your choice of rubber or braided flex for the low-pressure hoses and rubber, braided flex or braided stainless-steel for the high-pressure hoses. The package using XR regulators by Mares is assembled by Dive Gear Express and includes:

• Two Mares 28XR balanced diaphragm, environmentally sealed, first stage
• Two Mares HR balanced, pneumatically assisted, second stage
• LP Hose Choice of Rubber or Braided Flex
• One { 60 in | 152 cm } or { 84 in | 213 cm } LP Reg Hose
• One { 22 in | 56 cm } LP Reg Hose
• Two Swivel Adapters for the Second Stages
• Two SPGs (Choice of Size, Face Color, PSI or BAR)
• HP Hose Choice of Rubber, Braided Flex, or Braided Stainless-Steel
• Two { 6 in | 15 cm } or { 9 in | 23 cm } HP hoses for the SPGs
• Necklace, S/S Bolt Snap, two DIN Caps, two Bungee Loops for SPGs
• Optional Inflation Hoses for BC and Drysuit - { 22 in | 56 cm } is typical
• Cold Water and Nitrox Ready

The Mares 28XR First Stage is a balanced diaphragm regulator in a rugged chrome body with four standard size low pressure 3/8-inch ports on a swivel turret with an additional fifth port on top of the turret. Two standard size symmetrically aligned high pressure 7/16-inch ports have a 10-degree angle for optimal HP hose routing. The first stage is environmentally sealed and comes standard with a 300-BAR DIN connector. The first stage includes their dynamic flow control (DFC) system to provide low-pressure ports with constant inter-stage pressure and gas flow unaffected by depth, tank pressure, or breathing rate. The Mares first stages also include their Auto Sealing Technology (AST) that stops moisture and contaminating agents from entering the interior of the first stage, as can happen during the surface interval when the regulator is being moved between tanks or post-dive when the regulator is rinsed.

The Mares HR Second Stage is a high-performance regulator with an engineered polymer body for ultra low weight. The HR second stage features a pneumatically assisted breathing design with cracking pressure adjustment knob for diver selectable breathing comfort and a large purge button. The Mares second stages also route part of the gas from the second stage valve directly to the mouthpiece through a bypass tube that creates a swirling effect or vortex movement. The core of the vortex is a low pressure area that pulls the diaphragm down during the inhalation phase, resulting in a markedly sensitive and easy breathing regulator. This Vortex Assisted Design (VAD) allows for the feel of natural breathing; you do not have the uncomfortable feeling of air being excessively “injected” into your mouth that is typical for high-performance venturi assisted second stages. The VAD also minimizes potential cold-water free-flow due to freezing because the gas expansion inside the 2nd stage occurs in the bypass tube, rather than on the mechanical parts.