The housing is made of corrugated plastic, in such a way that tiers are formed in it to accommodate impregnating gaskets
 The lid is equipped with a clamping mechanism in the form of an accordion to prevent vibrations and retention of the impregnating gasket and protective lining in the housing
The clamping mechanism is made with the possibility of folding
 absorbent gasket of larger diameter
 insulating impermeable gasket of smaller diameter
 Due to the corrugated housing, insulating and impregnating gaskets of different diameters are placed in the device