1. Open Cell structure, air flow.  2. Flexible & durable.  3. No harm to environment, Non toxic, odor free.  4. Good drainage of water or oil after wet.  Filter media foam, also known as reticulated foam, is a porous, low-density, reticulated flexible polyester/polyether urethane foam. With an open cell structure and three dimensional skeletal strand structure. Available in pore size grades in sheets or roll form #katagori Produkanda gas karbondioksida#