As for competitive charges, we believe that you will be searching far and wide for anything that can beat us. We will state with absolute certainty that for such excellent at such charges we have been the lowest around for Cartridge Filter Pressure Drop Calculation, T-Filter, Precision Filtration, Melt Blown D Filter Cartridge,Polyester Filter. If possible, please send your requirements with a detailed list including the style/item and quantity you require. We will then send our best prices to you. The product will supply to all over the world, such as Europe, America, Australia,Czech, Denmark,Denmark, Washington.For many years, we have adhered to the principle of customer oriented, quality based, excellence pursuing, mutual benefit sharing. We hope, with great sincerity and good will, to have the honor to help with your further market.