The Rosemount 9935 Level Bypass Chamber is an expertly engineered chamber optimized for externally mounting Rosemount process level instruments to a vessel, offering an enhanced complete level solution. Rosemount 9935 chambers are the result of more than 35 years of experience in designing and manufacturing chambers, also known as bridles or bypass chambers, in accordance with international codes. Global quality assured, they are designed to ASME B31.3 Process Piping Code, ASME B31.1 Power Piping Code is available.