1 x COLAPZ Waste Pipe - Extendable 1 Metre. Very easy to link and adjust to required length, Easy to angle, so you can direct the water exactly where you want it to go. Easy to clean and store. doubles in length from 50cm to 100cm (1 metre). Fits standard caravan 28mm waste outlet (81330), however, an adaptor to fit 17mm to 50mm diameter waste pipes are available to purchase