Product Information Product Name : 500DAC3-500Manufacturer: Clearstream Wastewater Systems, Inc.Original Certification Date: 05/01/2016Certification Date: 05/01/2016Certification End Date: 05/01/2023Capacity: 500Material: ConcreteType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 245 Standard year: 2023 Version Year of Original Standard: 2013SPE#: n/a Approved Approved Aerators: Manufacturer: CustomModel: CS-103E Manufacturer: CustomModel: CS-103ET Manufacturer: CustomModel: CS-103ER Manufacturer: CustomModel: CS-103EZ Approved Diffusers: Model: Fine Bubble Approved Alarms: Manufacturer: Clearstream CS-118DA