Product Information Product Name : AA500Manufacturer: Ecological Tanks, Inc.Original Certification Date: 07/01/2020Certification Date: 07/01/2020Certification End Date: 07/01/2027Capacity: 500Material: ConcreteType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 245 Standard year: 2023 Version Year of Original Standard: 2019SPE#: 348 Certification: Certifications: NSF/ANSI Standard 40 Standard year: 2023 Version Year of Original Standard: 2019SPE#: 349 Approved Approved Aerators: Manufacturer: Jefe AireJefe Aire model: JA380 Manufacturer: Jefe AireJefe Aire model: JA-380AL Approved Diffusers: Manufacturer: HiblowModel: TP-500 Polyvinyl Chloride Approved Alarms: Manufacturer: Included on Aerator