Black synthetic rubber hose with 300 PSI working and 1200 PSI burst pressure for sizes 1.5” through 4” flexible piping and 1” at 250 PSI working and 1000 PSI burst pressure. All sizes are rated at 30 HG vacuum. Reinforcement consists of two plies of high tensile strength tire cord for all sizes and helix wire installed in sizes 1” through 4” for maximum performance in tight bend applications. The material comes in 100’ lengths and has a temperature rating of -40° F to 210° F.