Einschrauber 1/8? für Polyamidschlauch 4mm Anschlussteile Anschlüsse für Polyamidrohr Screw-in Port 1/8" for Polyamide Tube 4mm Screw-in port for thread: 1/8 inch NPT For polyamide tubes with outer diameter: 4mm Polyamide tubes are flexible, extremely pressure, temperature and weather resistant. On most modern cars these tubes are used as control lines for boost and vacuum applications. The many different connectors and adapters supplied by us allow these tubes to be used almost universally. The connectors, t-pieces and adapters feature a unique click-connection making additional clamps redundant. The click-connections are absolutely pressure resistant.