Suction Hose - 38mm (Total Dia) - 32mm ( Int Dia) - per Metre A hard suction hose is a specific type of hose used in drafting (moving water by means of suction) operations. It is built to withstand vacuums, rather than pressure, abrasion and heat. Lightweight and flexible Choose from 2 sizes of hose: Suction Hose - Overall Diameter: 38mm diameter - Internal Diameter: 32mm Suction Hose - Overall Diameter: 58mm diameter - Internal Diameter: 50mm Priced per metre (when ordering the no. of metres will correspond to the quantity ordered)