Ecoliteled Carbon vane 901352 for Becker Vacuum pump Becker VT3.40 ,VT4.40 etc K1 This is good quality spare parts carbon vanes , the price is for one carbon vane / blade . Fit becker these models----becker dt3.40 , becker dt4.40 , becker vt4.40 Becker vt3.40 , becker t3.40 , becker t4.40 Our vanes are manufactured to high standards. The use of specific grades of impregnated carbon Used by the pump oem, as well as good technologies in producing and finishing the product.