Factory moulded. Approved for Marine applications. Recommended for upper, lower, by-pass, heater, and other coolant hose applications. Has a heat and ozone resistant cover. This hose is engineered to resist electrochemical degradation- the leading cause of hose failure. It installs without buckling, bending out of shape, or straining at connections. It also meets SAE 20R4 and 20R3 Type EC class D-1 and D-2 specifications. The hose has a temperature rating of +275 deg F (+135 deg C). Caution: Not to be used for fuel or oil transfer applications. There are many different variations of shapes available that are not shown here. Only 90 degree bends have been illustrated. This range is especially designed for difficult hose applications requiring sharp 90 degree bends in the hose (please contact RP Wallis Wholesale for information on additional shapes and sizes).