The Furon® UPRP Regulators were designed to precisely deliver aggressive pure chemicals and DI water while maintaining downstream pressure to a predetermined set level. The 1/4" UPRP is available in either manual or pneumatically actuated versions. The UPRP is ideal for high-purity semiconductor, chemical processing and pharmaceutical requirements. For higher flow requirements, Saint-Gobain Peformance Plastics also offers a 1" UPRP regulator with pneumatic actuation.