Product Information Product Name : 500AG-13.5Manufacturer: AeroGreen Technologies, LLC.Original Certification Date: 07/22/2013Certification Date: 01/01/2020Certification End Date: 01/01/2027Capacity: 500Material: ConcreteType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 40 Standard year: 2019 Version Year of Original Standard: 2012SPE#: 201 Approved Approved Aerators: Manufacturer: HiblowModel: HP60Hi Blow model: HP-60A Approved Diffusers: Manufacturer: HiblowModel: TP-250 Polypropylene Approved Alarms: Manufacturer: Included on Aerator