Features: Widely used in the field of experiment, medical, biochemical analysis, pharmaceuticals, fine chemicals, biotechnology, food, environmental protection, family, etc. High Flow: 6.4mm x 9.6mm(internal dia.*outside dia.) tube size. Dual head pump with 500mm/min high flow rate. Durable Pump: Imported high transparent PC and nylon material, reliable, wear-resistant and durable. Equipped with super suction vacuum pump, the suction and lift are more than 300cm Safe Tube: The pipe adopts food grade silicone tube, with a life of 800 hours, great to applied with food grade liquid, etc. Any problem, please contact our store without hesitation. Honor to serve you. Specification: Model: G928D Material: PC, Nylon, Stainless Steel Rated current: 1000mA, 500mA Pump Quantity: 2pcs Flow Rate: 500ml/min Tube Size: ID 6.4mm x OD 9.6mm Tube Material: Food Grade Silicone Tube Tube Service Life: 200hrs Working Environment: Temperature 0-80, Relative Humidity;