Aqua One Aquis 500/700 Black Sponge 35ppi 38s

Description Aqua One Aquis 500/700 Black Sponge 35ppi 38s Aqua One 38s Black, 35ppi fine replacement sponge pads to suit the Aqua One Aquis 500 and 700 external filters. 2 sponges per packet Fine filter sponges will serve as a mechanical and biological filter. Water that passes through the pad will be cleaned of most fine particles