Coating: None Inside Diameter (in): 3.7 Material: NBR (60) Applications: Ambient temperature fuel handling; High and low pressure LPG service; Hydraulic fluids; Power steering seals; Radiator thermostat seals Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image. Compatible With: Alpha-Olefin base synthetic lubricants; Ethylene Glycol; Petroleum base lubricants; Silicone oils and greases; Water, water base engine coolants Temperature (°F): -40 - 212 Cross Section Diameter (in): 0.37 Not Compatible With: Automotive and aircraft brake fluids; High levels of ozone; Ketones; Phosphate ester fluids; UV Light