Product Information Product Name : NuWater B-600-ComboManufacturer: Enviro-Flo, Inc.Original Certification Date: 12/01/2012Certification Date: 12/01/2026Certification End Date: 12/01/2033Capacity: 600Material: ConcreteType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 40 Standard year: 2026e Version Year of Original Standard: 2010SPE#: 197 Approved Approved Aerators: Manufacturer: HiblowHi Blow model: HP-40 Approved Diffusers: Manufacturer: HiblowModel: TP-250 Polypropylene Approved Alarms: Manufacturer: Included on Aerator