Product Information Product Name : Maxx Air 600PManufacturer: Enviro-Flo, Inc.Original Certification Date: 03/20/2019Certification Date: 03/20/2019Certification End Date: 03/20/2026Capacity: 600Material: PolyethyleneType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 40 Standard year: 2019 Version Year of Original Standard: 2013SPE#: 251 Approved Approved Aerators: Manufacturer: HiblowModel: HiBlow HP40Hi Blow model: HP-60 Approved Diffusers: Approved Alarms: Manufacturer: Included on Aerator