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Return temperature limiter Basic RTL BOX with 3" male threaded connection
Summary description:
Basic RTL BOX is a return temperature limiter designed for hydronic heating systems. It features a 3" male threaded (GZ) connection and controls return flow temperature to protect boilers and optimize system efficiency. Suitable for installation in return pipes to prevent low-temperature corrosion, improve combustion and stabilize system operation in residential or light commercial heating setups.