Each L-2 module includes 120 flexible, flat-sheets, or elements. The total membrane area is 480m2 or 5,166ft2. The membrane type is ultrafiltration (UF) with a nominal pore size of 0.04m. The membrane material is PES. Using adapter kits, the L-2 is backward compatible with the BC-480, BIO-CEL L-1, and OV-480. Each module is supplied with all necessary mounting hardware. Modules come equipped with silicone fine-bubble diffusers for air scouring. Modules can be stacked in a double-deck configuration. BIO-CEL® received Title 22 approval for MBR applications in 2008. It has been approved for the highest type of reuse applications and is installed in more than 500 plants around the world.