... 20models of Integrative swimming pool filter with CE,ISO9001:2008 Approval Compact Filter, Swimming Pool filter,Water filter, Filter system,filtration systemFeatures:High filtering ... Pipe free: Our filter system does not need pipes any more,so it can help with the leakage problem. ... : This machine is made out of PP material with the functions of anticorrosion,watertight protection,scratches,cracks,tears ...