Vacuum units are available in 600, 1000 & 2000. The jars are made of polycarbonate, practically unbreakable, shatter resistant and autoclavable at 134 C. ABS is used for other components to withstand hard usage and provide trouble free service over a long period of time. A stainless steel bracket is provided on the cap as a separate component and not as an integral part of the cap to avoid the cap breaking, when the jar gets filled with suction fluids. The bracket fits directly on the mounting bracket on the wall. A well proven fluid control trap fitted on the unit automatically and efficiently shuts off vacuum fully, preventing the transfer of liquid to the vacuum regulator, pipeline and pump.