One of the most important parts of a central vacuum is suction inlets which are the connection point of the suction system
with the area that has to be cleaned. With the hose connected to these outlets port, you can easily clean and sweep the
space that you want. The design of these inlets is very important and the type of its material must be selected carefully and
its assembly must be done carefully. Therefore different kinds of suction inlets are designed and produced which you can
see in the above figures. These inlets are equipped with an airtight system to prevent from suction waste this system tightens
with an O ring and rubber gasket and four screws at the bottom of the inlet to airtight the system and won’t be changed by
temperature decrease or increase.