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2802 plastic air check valve products are offered for sale by suppliers on Alibaba.com, of which check valves accounts for 22%. A wide variety of plastic air check valve options are available to you, such as normal temperature, medium temperature and high temperature.You can also choose from stainless steel, aluminum alloy plastic air check valve,as well as from black, white, and silver plastic air check valve,and whether plastic air check valve is screw, or compact.