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.?