One used Lifegard Quiet One 1200 pump.

Lifegard Quiet One Pumps have been used by reefers for years for silent reliable water movement. Lifegard pumps can be used for almost any application where water needs to be moved continuously.

Flow Rate: 317 GPH.

Features:
Extremely quiet operation…so quiet you’ll swear it’s not running.
Safe for Salt or Freshwater applications.
ECO-SAV™ generates more power with less energy consumption.
Internal recirculation prevents overheating and ejects obstructing debris.
Remarkable impeller technology provides combined rotors, improved shaft materials and corrosion resistant bearings.
EZ Access Covers allow ease of maintenance of rotor, shaft and removable impellers.
Innovative “cooling chambers” provide air-cooling during dry use and water-cooling in wet applications.
Pre-­ filter Grill with Flow Control Valve in submersible applications

Note: The brown stuff on the cable and bottom is not rust. It has been used for GFO reactor, thus the rusty brown colouration.