SPN Holder Gasket for 2 inch

Rubber sealing gasket, equivalent to the Wein insert. Installed in the 2-inch column of a distillation apparatus instead of the standard seal. Performs 2 functions: ensures a tight connection and serves as a support for the SPN packing, acting as a wad to facilitate work with the filling. Compatible with Wein 6 PRO, Wein Combo and similar distillation units.