The Robin 2773261120 is a genuine OEM air filter element designed to provide superior filtration for a wide range of Robin/Subaru small engines. This essential component protects the engine from harmful dust and debris, extending engine life and maintaining peak performance. It is compatible with Robin EH09-2, EH12-2, EH17-2, EH25-2, EH30-2, EH34-2, EH41-2, EX13, EX17, EX21, EX27, EX30, EX35, EX40, EY15, EY20, EY28, EY40, EY27, EY35, and EY45 series engines. This filter element measures 101.6 mm in length and width, and 50.8 mm in height, with a weight of approximately 0.091 kg.