High Performance, Reliability, Excels in Rugged Simplicity The 2nd stage is lightweight with low-friction mechanics for easy, natural breathing Environmentally isolated, balanced diaphragm 1st stage delivers consistent performance as tank pressure changes 3 High Pressure (HP) 7/16" Threaded Ports, 4 Low Pressure (LP) 3/8" Threaded Ports Construction: Techno-Polymer, Elastomers, w/Components in Metal Cover w/Luxury Technology Treatment for Abrasion & Scratch Resistance Low-Friction Components First stage body material: chrome-plated polished brass • First stage characteristics: balanced diaphragm design • Second stage material: technopolymers, elastomers, and cover manufactured with corrosion- and scratch-resistant Luxury Technology treatment • Second stage characteristics: the new lever ensures reduced friction, making inhaling very fluid and linear • HP ports: 2 • LP ports: 4.