The 150LX Octopus delivers great performance at a moderate price. The front metal ring, packing nut & end cap come in stainless steel. All LX regulators come standard with 36" (91 cm) MiFlex hoses and orthodontic mouthpieces with dual color tabs. The 150XL Second Stage Regulator is a pneumatically balanced chrome-plated brass valve results in smooth, easy breathing. Is equipped with a reversible demand valve that can be converted from right-handed hose configuration to left handed hose configuration. The second stage has an adjustable Dive/Pre-Dive switch: Large Venturi lever has a soft rubber grip, which makes it easy to locate and use. Ergonomic exhaust channels bubbles away from field of view and reduces exhaust effort. Improved orthodontic mouthpiece with dual color tabs and a stainless steel cosmetic ring.