The 150LX controller is similar to the 200LX in terms of design and performance, however it lacks PVD plating and diver inhalation adjustment. The 150LX delivers excellent performance at a reasonable price. This second stage is designed to work with the DC7 for a fantastic around-the-world design or for those dives looking for exceptional performance and is certified to 40% oxygen. The workhorse HO2 1st Stage is also compatible with the 150LX for use with 100 percent oxygen. 316 Stainless Steel is used for the second stage front metal ring, packing nut, and end cap. MiFlex® hoses and orthodontic mouthpieces with double color tabs come standard on all LX controllers. It's available in two different configurations: yoke and DIN. Hollis' Lifetime Warranty, 2-Year Service Interim, and Lifetime Parts are standard on the LX regulators.