Topology is working as the exclusive agent for a pool&SPA maintainance products producers. We are the manufacturer special for PP melt blown filter cartridge, string wound filter cartridge, PP pleated filter cartridge, high water flow pleated filter cartridge, pool&SPA filter cartridge, and have the goal to exploit the market by better price and quality. The production capacity for pool filters is five hundred thousand pieces per year which tops China as far as we know. This enables us to provide better qualtity with competitive price.Moreover, we provide OEM for our customers. We have the capability to manufacture pool filters in any specifications regarding height, inner and outer diameters, number of fold, etc. If you are interested in our pool&SPA filter cartridge, you may contact us via email for further information.