In a large format tile handling test Raimondi recently tested a cheap vacuum cup against a standard Raimondi vacuum cup. The video posted on YouTube shows a Raimondi product with the vacuum gauge and a cheap blue vacuum cup. The cheap cup loses its vacuum in seconds while the Raimondi cup retains the vacuum for considerably longer.
Vacuum cups are regularly used in connection with handling large format tiles. These tiles are heavy and need top class tools to handle them. The cheap vacuum cup just isn’t fit for purpose and would pose a real health & safety hazzard.
See video on YouTube