Slanger af polytetraflyorethylen, indvendig diameter ca. 5 mm, udvendig diameter ca. 8,5 mm (incl. en beskyttelsesfletning af ståltråd på ca. 1 mm), der i hver ende er forsynet med et forbindelsestykke af metal.
Polytetrafluoroethylene pipes with an internal diameter of about 5 mm and external diameter of about 8.5 mm (including the sheath of plaited steel wire of about 1 mm); they are fitted at each end with a metal connecting device.