Model 310 Electronic Starter Diaphragm Water Pump This compact DC water pump is designed for small scale fluid transfer with a self priming diaphragm mechanism. It is suitable for use in tight spaces and battery powered projects, offering straightforward integration and reliable operation. Key benefits Compact 27 mm diameter footprint for easy installation in small enclosures and projects Self priming suction simplifies setup, allowing pumping from reservoirs without manual priming DC powered, compatible with voltages from 3V to 4.2V, enabling use with low voltage sources and battery systems Low power consumption (2.5W) suitable for portable or power sensitive applications Diaphragm pump design provides reliable operation for small volume transfer Key attributes Functionality: Electronic starter diaphragm water pump for small scale fluid transfer Compatibility: DC voltage range 3V to 4.2V; suitable for 3.7V nominal systems; power rating 2.5W Size: 27 mm body diameter; compact and lightweight Material: not specified in the listing Performance: 2.5W power consumption; self priming suction Use cases Desktop or small scale hydroponics and seedling irrigation systems that require a compact water pump Miniature fountains, water features, or terrarium setups where space is limited Small enclosed enclosures for humidification or cooling that need a compact, batterypowered pumping solution