Aqua One UFO 550 Filter Service Kit

Fit a new pack of Aqua One 59W and the Aqua One 59s when you receive the kit. After this replace both the 59w pads every six weeks or so and gently rinse the Aqua One 59s in a little aquarium water (it doesnt have to be pristine) to preserve the helpful filtration bacteria that grow in the sponge pores. The Bionoodles can also be rinsed in the same way. Though these only need to be replaced every year or so. A few at a time is best.