Mask:----Window Style1 FrontMask MaterialsSiliconeLens MaterialPolycarbonateVolumeHighHead Strap Design5-Point SpiderRegulator CompatibilityPoseidon Jet-Stream 2'nd Stage with Xstream 1'st StageRegulator:----1'st Stage TypeBalanced Rolling Diaagm Ball Valve DesignLP Ports5HP Ports22'nd Stage TypeUpstream Servo-Valve DesignRegulator Materials1'st Stage; Chromed Brass, 2'nd Stage Housing; PVC, Internal Mechanism: Brass, Stainless Steel and RubberHose Length27.5" (70 cm)
