The HiOx Messner Aeration Panel from Parkson Corp. efficiently produces ultra-fine bubbles while maintaining low, sustainable back pressures. It uses thermoplastic polyurethane as a membrane material. The inherent softness and flexibility of the material allows it to produce ultra-fine bubbles in the wastewater in addition to resisting the attachment of biological and mineral deposits. When mounted very close to the basin floor, the panels can provide high efficiency and floor coverage with few components. 888/727-5766; www.parkson.com.