Fire Delivery Hoses Conforming to BS 6391 Type 3, UL 19, prEN 1924, IS 636 Type B, All synthetic jacket totally encapsulated in a synthetic rubber blend three layered heavy duty fire fighting Delivery Hose, The delivery hose pipe is durable & heavy duty pipe. Inside lining is of special grade synthetic rubber used to form a high quality unified lining & covered resulting a compact unity by pillar adhesion to resist from deterioration and cracking.