Hellermanntyton isolvin corrugated conduit black iws series hellermann tyton 169 22750 the hellermanntyton 169 22290 iws 29 n6 bk q1 is an isolvin corrugated conduit from the iws range the conduit has been manufactured from polyamide 6 and is characterised above all by its excellent resistance to oils fuels and solvents it is resistant to abrasion and offers excellent mechanical protection as well as excellent fatigue strength under alternating flexural stress hellermanntyton 169 2275