The Hollis 100LX DC3 Regulator is the simplest of the LX range with all of the features of the 150 except for the metal front ring and it is paired with the DC3 1st stage. IfollH you're after a simple high-performance set of regs this combination is a great pairing without a large price tag.
100LX 2nd Stage
The 100LX 2nd stage has fewer metal parts to make it lighter but it still has the reversable design and adjustable Venturi lever. The reversible design can change the orientation of the hose depending on which side you want the hose to come out from by a Hollis Technician. The Venturi lever changes the direction of the airflow inside the body to prevent freeflows on the surface.
DC3 1st Stage
The DC3 is a compact, environmentally sealed 1st stage with all of the ports you'll need in a simple smart design.
The Hollis 100LX Octo is a pneumatically balanced alternate 2nd stage to match the performance of the Hollis 100LX and 150LX Primaries. Adjustable Venturi switch prevents freeflows on the surface to save gas and embarrassment on the surface and it comes standard with a MiFlex® braided hose and an orthodontic mouthpiece.
The design of the 100LX 2nd stage is reversible so you can have a technician change the orientation of the hose if you need. The chrome plated brass valve inside is pneumatically balanced for a smooth breathe at any depth.