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Abyss 52A combination of high performersCompact high performance first stageNatural convection channel (NCC)The Mares hero second stageAbyss is available with the compact top performer MR52 first stage: the best for a unique high caliber set up. Double DFC system provides a consistent flow of air at any depth, even when breathing simultaneously from both the primary second stage and the octopus. The NCC system and the design of the Abyss second stage with more metal on the front cover, allows this combination to achieve very high performance in cold water. Pre-oriented pressure ports for an ideal placement of hoses even using two independent regulators.Product DetailsCode: 416163Material: MetalFirst stage: Balanced diaphragm designFirst stage weight (g) INT: 687First stage weight (g) DIN300: 513Second stage weight (g): 269Total weight (g) INT: 1106Oil/Dry cold water kit: OilNitrox: -HP Ports: 2 HP 7/16" UNF portsLP Ports: 4Lp 3/8" UNF portsInhale pressure: 7.83 mbarInhale pos pressure: 2.18 mbarExhale pressure: 8.23 mbarExt work breathing: 0.88 J/lInhale work: 0.27 J/lPos inhale work: 0.00 J/lExhale work: 0.61 J/lPressure depth: 50m (165ft)