MSA's long-standing commitment to the fire service industry began nearly 100 years ago. Our goal is to provide dependable, high quality products, instruments and service that will help to ensure a safe return home. MSA's extensive knowledge and expertise has helped to harness new technologies to produce exceptional protective equipment. The G1 SCBA is designed solely with your safety and comfort in mind. The G1 SCBA offers integrated and enhanced solutions to exceed your needs today as well as years into the future. MSA SCBA Cylinder Assembly, Series: G1 Series, 1 hr Duration, 4500 psi Pressure