[Size]: Hose ID: 3/4" (19mm), ID Tolerance: ±0.4mm; Hose OD: 1- 1/16"(27mm), OD Tolerance: ±0.4mm; Hose Length: 5 Feet. [Parameter]: Working Pressure: 60 psi; Burst Pressure: 203 psi; Temperature Range: -67°F to 356°F (-55°C to 180°C); Minimum Bend Radius: 95mm. Meets SAE 20R3 Class A requirements. [Material]: The heater hose is constructed with braided polyester fiber and silicone inner and outer layers. Compared to EPDM material, silicone withstands a greater temperature range and lasts longer. [Application]: Transport air, steam, water, coolant, weak acid and alkaline. Suitable for automotive cooling systems, heating systems, water heaters, etc. [Note]: Silicone hose is not for carrying alcohol, fuel, engine oil, or lubricants.