Silicone Heater Hose SAE J20 R3 Silicone Heater Hose exceeds the SAE J20 R3 Class A. The silicone hose is reinforced with 1-ply polyester fabric. It can also bear elevated temp. Such silicone hose has a work temp range of -54℃ to +200℃. Thus it's ideal for coolant fluid and vacuum line service. The…