Product Information Product Name : Micro Air 500Manufacturer: Toshco Sewer SystemsOriginal Certification Date: 10/01/2010Certification Date: 10/01/2024Certification End Date: 10/01/2031Capacity: 500Material: ConcreteType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 40 Standard year: 2023 Version Year of Original Standard: 2009SPE#: 130 Approved Approved Aerators: Manufacturer: HiblowModel: HP80Hi Blow model: HP-80-010A Manufacturer: ThomasThomas model: AP-80A Approved Diffusers: Manufacturer: PVCModel: MA 516x2 Manufacturer: PVC new float valve Approved Alarms: Manufacturer: Included on Aerator