Product Information Product Name : Maxx Air M-1500 Dual AerationManufacturer: Enviro-Flo, Inc.Original Certification Date: 07/01/2019Certification Date: 07/01/2019Certification End Date: 07/01/2026Capacity: 1500Material: ConcreteType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 40 Standard year: 2019 Version Year of Original Standard: 2018SPE#: 345 Approved Approved Aerators: Manufacturer: HiblowModel: HP-150Hi Blow model: HP-150 Approved Alarms: Manufacturer: Included on Aerator