When winter hits and you pull your chiller inside to protect it from freezing, your pump does not have to go quiet. In the cold months, outdoor temperatures do the chilling for you, but the water still needs to move to stay filtered, clear, and free of sediment. This 24V power adapter runs your cold plunge pump directly, so you keep circulation going without powering the whole chiller. Normally your pump draws power through the chiller. This adapter gives it a dedicated power source instead. Plug it into any standard outlet, connect the barrel plug to your pump, and your water keeps moving. It is not just a winter tool. Use it any time you want circulation without the chiller running: rinsing and cycling fresh water after a water change, running your filter and ozone loop during maintenance, or bench-testing your pump before a build goes live. The universal 100 to 240V input means it works with standard home power anywhere, and the 24V 3A output (72W) is matched to the commonly used cold plunge circulation pumps.9.9 One important note on placement: this adapter is rated for indoor, dry-location use only. Keep it inside a garage, shed, or weatherproof enclosure, out of rain and splash, and always run it on a GFCI-protected outlet. Treat it like any other piece of powered equipment near water. Pair it with your water pump and keep your plunge running clean straight through winter.