Numatic 280018 - 35mm x 435mm long 3:1 stretch dirty water hose with cap & strap 
 
Genuine Numatic dirty water dump hose suitable for the Numatic TwinTec TT4045 & TT3045 Scrubber Dryers.
35mm x 435mm long. 3:1 stretch hose. Comes complete with cap/ bung and strap.
previous part number 213047