Product Information Product Name : AA600-4NRManufacturer: Ecological Tanks, Inc.Original Certification Date: 12/15/2023Certification Date: 12/15/2023Certification End Date: 12/15/2030Capacity: 600Material: ConcreteType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 245 Standard year: 2023 Version Year of Original Standard: 2022SPE#: 481 Approved Approved Aerators: Manufacturer: HiblowHi Blow model: HP-100-0110 Manufacturer: HiblowHi Blow model: HP-80-0143 Manufacturer: Jefe AireJefe Aire model: JA400 Manufacturer: Jefe AireJefe Aire model: JA420 Approved Diffusers: Manufacturer: HiblowModel: Hiblow Polypropylene Model TP-250