These PVC (polyvinyl chloride) suction and discharge bulk hoses are used to vacuum or pump water in construction and septic-tank cleaning operations and for general industrial and agricultural applications that require a hose with mild chemical resistance. The hoses are made from PVC, which provides good flexibility and good resistance to chemicals. They have rigid PVC helix reinforcement that helps them keep their shape when not in use and prevents the hoses from collapsing in suction applications. Bulk hoses can be cut to the desired length, and compatible hose fittings can be added to the ends of the hoses to create custom hose assemblies.