... DuPont & Dow elastomers, neoprene, HNBR, NBR + PVC, natural rubber, SBR, IR, IIR (butyl rubber), CR (neoprene), SBR, AU, ACM, CO, etc. NSF ... confirm to the ISO-9001, ISO14001 and NSF-61 standards 3) Excellent chemical and physical property4) RoHS directive compliant green products5 ... specifications are accepted 7) Available in various sizes and colors Rubber hose