Elaflex TWD tank truck coupling seal in black nitrile rubber, for suction and pressure duty. Seals for tank truck couplings (Technique / Industrial hoses and couplings / Quick connectors). Principal data: DN 80, outer diameter 92 mm, inner diameter 77 mm, thickness 6 mm. Supplied under manufacturer part number TWD 80, HS code 4016.93, country of origin Germany.