Product Information Product Name : EP500C2Manufacturer: Acquired Wastewater Technologies, LLCOriginal Certification Date: 07/16/2020Certification 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: 2019SPE#: 367 Approved Approved Aerators: Manufacturer: HiblowHi Blow model: HP-40 Manufacturer: HiblowHi Blow model: HP-40A Manufacturer: SecohSecoh model: JDK-40 Approved Diffusers: Manufacturer: DF100MS Approved Alarms: Manufacturer: HiBlow