DC12V Peristaltic dosing Pump Tygon LFL 6mm(ID) tube and can deliver 500ml/min Precise 500ml per minute flow rate DC motor with quality assurance High quality Tygon LFL 6mm tube meets USP ClassVI, FDA and NSF criteria Preassembled food grade PP made barbed connector for 1/4" external tube Quick tube replacement (no tools required)