TE Connectivity Econoseal EHM Series Connector Housings Econoseal EHM series receptacle style automotive wire connector housings made from black PBT with O-ring type silicone rubber seals. These receptacle style automotive wire connector housings have polarization to aid mating alignment and have threaded couplings (apart from stock number 718-9368 which has a 16S bayonet coupling). The cable range accepted by these discrete wire connector housings is 0.5 to 4mm² (apart from stock number 718-9368 which accepts 1 to 4mm²⁾