This is a smooth solution for auto gas aspiration in moving vehicles.
The carrying aluminium rail, which is also the suction channel, is only fitted with a rubber weatherseal located on the top side of the channel.
This rubber weatherseal seals the air gap in a natural way, thereby effectively eliminating the risk of leakage.

Weight (hose mount)

The weight is used in connection with the installation of fixed suction locations.
Fixed suction locations is a simple and cheap way of establishing an auto gas aspiration system in a car repair workshop featuring stationary work areas.