Rubber Suction and Delivery Hose Suction and Delivery Hoses Are Recommended For: Both suction and delivery of weak acids, alkalis, oil and water, etc. This is a multipurpose hard wall hose, incorporating a twin high tensile wire helix embedded into the carcas of the hose, preventing the hose from kinking. The hose has a 4:1 safety factor on the working pressure. For sizes greater than 150 mm, see Suction and Delivery hoses. LINER: A blend of black natural and synthetic rubber REINFORCING: Multiple cords of synthetic yarn plus a double high tensile wire helix COVER: A blend of natural and synthetic rubber with blue ID stripe RECOMMENDED TEMPERATURE RANGE: -20° to +80° C STANDARD LENGTH: 30m rolls Call Today: +27 11 839 2370 Understand how Truco classifies and distinguishes its range of industrial hoses. Ensure efficient ordering with this guide. Click here.