Red Seal Measurement systems are specially designed to provide unsurpassed service in the LPG industry, one of the most demanding liquid measurement applications. We specialize in precision machining, assembling, testing and calibration of highly accurate mechanical meters and state-of-the-art Coriolis mass flowmeters. As pioneers in the use of mass flowmeters for LPG, we were the first provider of truck mounted all-electronic mass flow systems. Our Neptune brand flowmeters, trusted for decades in all stages of petroleum and LPG custody transfer, have an established reputation for accuracy and dependability. Red Seal Measurement continues to uphold this legacy of performance, quality, and service with an array of metering solutions for every step in the LPG supply chain.