Tubing Inside Dia 5/8 In Outside Dia 7/8 In Wall Thickness 1/8 In Bend Radius 2 5/8 In Tensile Strength 950 PSI Max Pressure 8 PSI Temp Range -60 To 275 Deg F Material of Construction Santoprene Length 50 Feet Hardness Shore A 64 Color Black Standards ASTM D2000