Product Information Product Name : 500AG-PTManufacturer: AeroGreen Technologies, LLC.Original Certification Date: 06/01/2022Certification Date: 06/01/2022Certification End Date: 06/01/2029Capacity: 500Material: ConcreteType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 40 Standard year: 2023 Version Year of Original Standard: 2020SPE#: 437 Approved Approved Aerators: Manufacturer: HiblowHi Blow model: HP-60 Manufacturer: SecohSecoh model: EL-60 Manufacturer: ThomasThomas model: AP-60 Approved Diffusers: Manufacturer: HiblowModel: TP-250 Polypropylene Approved Alarms: Manufacturer: Included on Aerator