Pool Sponge Oil and Scum Absorber, white turtle 4-pack (NWOT)
Pool Sponges, Oil and Scum Absorber. This allows the filter to run longer with more efficiency. For best results, place two (2) sponges on the water's surface and let them float. Remove after they have fully absorbed the oil/scum (sponges will turn brown with oils), squeeze out the oil and clean sponges for next use.