Use polyester cotton blend and friendly acrylic fibers, this filtration sponge withstands repeated use without deteriorating or contaminating water Perfectly suited to residential hottubs, commercial swimming pool, and wellness center hottubs where oil film and particulate buildups require frequent intervention Premium hottub Scum Absorber efficiently removes oil residues and floating debris from water surfaces, maintaining clean water conditions in spas and pools with rapid absorption capabilities Multiuse hottub oil Absorbing sponge works synergistically with existing filtrations systems, enhancing overall water clear while reducing manual skimming effort Great for homeowner, pool maintenance professional, and spas operators searching efficient surfaces scum elimination solution for water environment