Replacement Filter Cartridge Set for FM530 & FM1K

Replacement Step 1 Unscrew the orange upper cover counterclockwise. Note that the package does not include a filter pump! Replacement Step 2 Lift the cover and remove the used filter. Note the position of the red rubber ring; ensure it is placed in the groove on top of the pump body. Installation Step 3 Insert a new filter cartridge into the pump body. Put the chamber cover back on and tighten the orange cover clockwise.