This Mares 28XR/HR Set comes unassembled. The set includes:

• One Mares 28XR DIN First Stage
• One Mares HR Second Stage
• One { 30 in | 76 cm } Miflex XT-Tech LP Reg Hose

The Mares 28XR DIN First Stage is a balanced diaphragm and twin balanced piston regulator in a compact and rugged high-impact chrome body that provides constant and effortless airflow unaffected by depth, tank pressure, or breathing rate. It is AST environmentally sealed for underwater removal. It features four standard size low pressure 3/8-inch ports on a swivel turret with an additional fifth port on top of the turret, all with natural DFC. Two standard size high pressure 7/16-inch port have a 10-degree port angle for optimal hose positioning. The first stage is environmentally sealed for cold water performance, and comes standard with a 300-BAR DIN connector.

The high-performance Mares HR Second Stage features an ultralight technopolymer body for light weight. The ultralight technopolymer body features a pneumatically assisted design, adjustable breathing comfort and an oversized purge button.

The complete set can be opened, cleaned or fixed underwater. The manufacturer's recommended service interval is every two years or one hundred dives.