"First Stage: 
 made from Sand-blasted forged brass. 
 High-performance balanced diaphragm design: The Intermediate Pressure is always constant during the dive at any depth. 
 Simple and fast maintenance. 
 HP ports: 2
 LP ports: 4
 Replaceable stainless-steel Valve Seat: designed to offer great safety, it can be easily disassembled to make maintenance easy. 
Second Stage: 
 made of technopolimers, elastomers, and metal components. 
 Front cover enhanced with rust-proofing and scratch-resistant Luxury Technology treatment. 
 Adjustable breathing effort and Venturi effect. 
 OWS System: the Cover is designed to prevent free flow even in strong currents."

Top performance, lightweight balanced adjustable regulator;
Pneumatically Balanced Downstream Design;
Balanced Diaphragm 1st Stage Design, Sanded Chrome Plated Forged Brass Body; 
4 Low Pressure (LP) 3/8" Threaded Ports: -2 Inclined at 20°, -2 Inclined at 30° Proper Hose Routing, Less Stress, More Streamlin;
Construction: Techno-Polymer, Elastomers, w/Components in Metal  Cover w/Luxury Technology Treatment for Abrasion & Scratch Resistance Low-Friction Metal Components.