Choose between two rated working voltages: 12V and 24V. Features: 304 Stainless Steel Wheel Frame: Crafted from solid, corrosion-resistant 304 stainless steel, this wheel frame offers lower power consumption and reduced noise compared to plastic counterparts. Ball Bearing Design: The self-priming pump's wheel frame incorporates a ball bearing, ensuring silent operation, durability, and an extended lifespan. Adjustable Flow Direction: Easily control the flow direction of the peristaltic pump by adjusting the connection of positive and negative terminals. Easy to Use: The pump cover has no valves or seals, allowing for convenient hose replacement and easy maintenance. Wide Range of Applications: Ideal for use in experimental settings, biochemical analysis, pharmaceuticals, fine chemicals, biotechnology, water treatment, and environmental protection. Specifications: Model: G928 Installation Method: L Panel Motor Type: DC Brush Motor Motor Power: 12V, 24V (Optional) Pump Head: Roller Peristaltic Pump Pump Shell: Transparent PC Pump Material: Food-grade Platinum Vulcanized Silicone Hose Roller Bracket: 304 Stainless Steel Flow Range: 500ml/min Tube (internal diameter × outside diameter): 6.4mm × 9.6mm Product Weight: 287g Package Size: 10 × 6 × 10cm / 3.9 × 2.4 × 3.9in Package Weight: 295g / 10.4oz Package List: 1 x Peristaltic Pump 1 x Wrench