Smc'S Series Of Polyurethane Tubing Is Manufactured From Polyether Resin, Insuring The Longest Possible Tube Life Due To Its Immunity To Hydrolysis. Series Tiub Inch Size Tubing Is Available In 8 "Quick Ship" Colors, In Standard Stocked Lengths Of 66Ft, 100Ft, 500Ft, 1000Ft And 1640Ft. There Are 21 Additional Standard Colors To Suit Special Needs.