Single-barb design provides a leak-proof seal. Natural PVDF (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. PVDF fittings are ozone and UV resistant. Stock Listed from 1/8" - 3/4" NOTE: NYLON AND POLYPROPYLENE AVAILABLE BUT NOT LISTED, IN BLACK AND NATURAL