Copilot said: The Lowara Presfix range of pressurisation units is designed to automatically maintain system pressure in sealed heating and chilled water systems by replacing water lost through leakage and routine operation. Suitable for commercial, industrial and building services applications, Presfix units help protect boilers, chillers and associated equipment by providing automatic water make-up, pressure monitoring and high/low pressure safety interlocks. Available in Micro Presfix, Mini Presfix, Presfix Beta and Presfix Beta Dual System configurations, the range offers reliable pressure management solutions for systems of all sizes while supporting compliance with BS7074 requirements. With advanced control options, BMS integration capabilities and single or twin pump configurations, Lowara Presfix units provide dependable and efficient system pressurisation for modern HVAC installations.