MK11 EVO/S270

The SCUBAPRO MK11 EVO/S270 pairs the compact balanced diaphragm MK11 EVO first stage with the air-balanced S270 second stage. The MK11 EVO uses a forged brass body with metal thermal fins, plastic bumpers and a double spring layout, with two high pressure ports on a 15-degree angle and four high-flow low pressure ports. Intermediate pressure is externally adjustable, which allows a technician to set the system without opening it.

The S270 follows the S620Ti design in a smaller casing, with a technopolymer barrel on a metal thread that gives ice crystals little to grab onto in near-freezing water. The casing combines a fibreglass-reinforced nylon core with a polyurethane outer layer for scratch resistance, and the compact exhaust tee minimises exhalation effort while directing bubbles away from the field of view. Controls are a dive/pre-dive switch and a large purge, both usable in thick gloves, and the set comes with a DIN 300 or INT 232 connection.

First stage: MK11 EVO, balanced diaphragm, forged brass body, 4 low pressure and 2 high pressure ports, intermediate pressure 9.2 to 9.8 bar (133 to 142 psi), CE certified to EN 250A. Second stage: S270, air-balanced, technopolymer barrel with metal thread, FDA-approved silicone hi-flow mouthpiece. Connections: DIN 300 and INT 232.