Product Information Product Name : NuWater NR B-850Manufacturer: Enviro-Flo, Inc.Original Certification Date: 08/01/2020Certification Date: 08/01/2020Certification End Date: 08/01/2027Capacity: 850Material: ConcreteType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 40 Standard year: 2019 Version Year of Original Standard: 2019SPE#: 364 Certification: Certifications: NSF/ANSI Standard 245 Standard year: 2019 Version Year of Original Standard: 2019SPE#: 364 Approved Approved Aerators: Manufacturer: HiblowHi Blow model: HP-100 Manufacturer: HiblowHi Blow model: HP-120 Manufacturer: ThomasThomas model: AP-80 Manufacturer: ThomasThomas model: AP-120