Replacement 180W power supply unit for Maytronics Dolphin robotic pool cleaners, specifically designed for 4-pin models. This unit features a built-in handle for easy transport, a one-touch power button, and a weekly timer for automated cleaning cycles every 1, 2, or 3 days. Compatible with a variety of models including Nautilus CC Plus (Old), DX3, M3, and Atlantis, it provides stable DC 29V output to restore mobility and suction efficiency. The package includes a 75-inch power cord for simple plug-and-play setup without the need for tools. Measurements: • Unit Height: 8.38in • Unit Length: 10.19in • Unit Width: 3.84in • Power Cord Length: 74.8in (1.9m)