In order to give you convenience and enlarge our business, we also have inspectors in QC Team and assure you our best service and product for 13X oxygen generator, Mbbr Media, Pool Ball Filter, Moving Bed Filter Media,Ceramic Filter Plate. All prices depend upon the quantity of your respective order; the extra you purchase, the extra economical the rate is. We also offer fantastic OEM provider to numerous famous brands. The product will supply to all over the world, such as Europe, America, Australia,Portugal, Australia,Marseille, Kenya.we are now looking forward to even greater cooperation with overseas customers based on mutual benefits. We will work wholeheartedly to improve our products and services. We also promise to work jointly with business partners to elevate our cooperation to a higher level and share success together. Warmly welcome you to visit our factory sincerely.