Hellermanntyton galvanised conduit with overbraid pcsb series hellermann tyton 166 33602 the hellermanntyton 166 33602 pcsb20 is a highly flexible metallic conduit with overbraid from the pcsb series this conduit is 169mm in diameter and has been manufactured from galvanised steel with a pvc coating and galvanised steel overbraid ideal for applications in industrial environments where higher abrasion resistance or emc screening are required hellermanntyton 166 33602 pcsb20 16 galvanised