Connectors, Adapters, and Hose-barb fittings that are made of Ozone and UV resistant Kynar® material. Ozone Resistant Kynar is the material of choice for many ozone applications. 1/16-in barb to 1-in barb on select fittings is available. Kynar® (PVDF - Polyvinylidene fluoride) is a highly non-reactive and pure thermoplastic fluoropolymer that stands up excellent against Ozone and Ultraviolet light.