Product Information Product Name : MB 1500 SManufacturer: Acquired Wastewater Technologies, LLCOriginal Certification Date: 07/24/2019Certification Date: 07/24/2019Certification End Date: 07/24/2026Capacity: 1500Material: MetalType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 40 Standard year: 2019 Version Year of Original Standard: 2005SPE#: 107 Approved Approved Aerators: Manufacturer: GastGast model: SPP-100JGL Manufacturer: GastGast model: DBMX(101)-120 Manufacturer: GastGast model: DBMX(175)-120 Manufacturer: SecohSecoh model: JDK-120 Approved Diffusers: