SMC's seriesáof polyurethane tubing is manufactured from Polyetheráresin, 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.ááThere areá21 additional standard colors to suit special needs.á