U.S. Plastic Corp.® carries an extensive line of Kynar®, nylon and polypropylene tubing fittings. Single-barb design provides a leak-proof seal. Black nylon offers good tensile strength for general purpose applications, with maximum pressure of 150 psi and temperature range of -50° to 275°F. Natural polypropylene offers good chemical resistance, with maximum pressure of 125 psi, and temperature range of -9°F to 150°F. Natural Kynar® (Polyvinylidene Fluoride) provides the ultimate chemical and abrasive resistance and strength, with maximum pressure of 260 psi and temperature range of -80° to 226°F.