Davey CF500 / Easy Clear / Crystal Clear Aquatune/Magnum replacement cartridge
 
Manufactured from quality Cartridge Element Media and made in New Zealand by Magnum Filters for Aquatune, the Davey CF500 / Easy Clear / Crystal Clear CF500 is made of continuous filaments and does not weave out meaning it is heavier and sturdier than other filters on the market making it better at capturing smaller particles to 10 microns.  It has a length of 277mm, Diameter of 208mm and hole of 102mm.