Solvent circulation apparatus

Solvent circulation apparatus, long form with Dimroth condenser made from stainless steel, cone NS 29/32, cone NS 29/32, socket NS 29/32, PTFE-valve 0 to 3 mm , vapor tube outside, borosilicate glass 3.3.
Type 1: with double oblique bore stopcock, PTFE-plug NS 18.8/6.0 mm bore, with hose connection 8 mm.
Type 2: with 2-way PTFE valve with fine thread for return flow and removal.