Oase Aquarius Eco Expert pumps are powerful and energy-efficient 230V DC pumps perfect for handling large waterfalls and decorative fountains with continual operation and minimal maintenance. The water intake is shielded by a stainless steel intake screen that displaced particles up to 0.16 inch in size. Motor is quiet, energy-efficient, and can be submerged or set up in-line. Can be connected to 1 inch, 1.5 inch or 2 inch fountain attachments. Environmental Function Control (EFC) shuts off pump in event of a dry run or blockage to protect pump from damage. Can be connected to EGC Controlled Cloud. Frost protection allows pump to operate in water as cold as -4 degrees Fahrenheit. Ergonomic handle makes it easy to transport and install. Maximum flowrate of 11500gph, maximum pump head of 34 feet, has 2 inch inlet and outlet.