Shields 1350 Water/Heater Hose is fabric reinforced and has an EPDM tube and cover. This hose is primarily used for engine heater hose, heat exchanger, A/C circulation, and drain lines (sink, icebox, shower and livewell). Resistant to mild chemicals, heat, cold, ozone and saltwater. Temperature ranges from -40?F - +212 degreesF. ID 1/2" Length 50'