Product Information Product Name : CB 500 TManufacturer: Acquired Wastewater Technologies, LLCOriginal Certification Date: 02/01/2015Certification Date: 02/01/2015Certification End Date: 02/01/2022Capacity: 500Material: ConcreteType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 40 Standard year: 2019 Version Year of Original Standard: 2005SPE#: 120 Approved Approved Aerators: Manufacturer: MedoModel: LA-80Medo model: Hemla-80 Manufacturer: GastGast model: SPP-40GJL Manufacturer: SecohSecoh model: JDK-60 Approved Diffusers: Manufacturer: Polypropylene Approved Alarms: Manufacturer: AWT