Is your La Marzocco Linea PB or KB90 2-group espresso machine experiencing inconsistent water inlet flow or suffering from back-siphonage? Restore the integrity of your machine's plumbing system with the genuine La Marzocco Tube, Water Inlet - Check Valve (Part # T.1.091.2). This critical OEM replacement component is specifically designed to manage the water supply connection, ensuring a one-way flow of water into the system. If you need to fix a leaking check valve on Linea PB or solve water ingress problems in your KB90, this tube and integrated check valve assembly provides the precise solution for reliable, uninterrupted operation. Engineered to the rigorous standards of La Marzocco, the T.1.091.2 Water Inlet Tube is constructed from durable, high-quality materials to withstand high pressure and continuous commercial use. This 2-group specific tube ensures a perfect fit and leak-free connection for the designated Linea PB and KB90 models. The integrated check valve prevents contaminated boiler water from flowing back into the fresh water supply, a vital safety and performance feature. Installing this authentic replacement guarantees compatibility and maintains the factory-specified performance of your machine's water intake system. By replacing a worn or failing inlet tube and check valve with the genuine La Marzocco part, you secure the longevity and hygiene of your espresso equipment. Consistent fresh water supply protects internal components and ensures stable boiler performance, leading to consistent extraction quality. Minimize downtime and prevent potential system damage by investing in the essential Tube, Water Inlet - Check Valve 2gr Linea PB/KB90 (T.1.091.2) today. Trust Kaldi.com for original La Marzocco replacement parts that keep your commercial workflow seamless.