The PerformancePro Dial-A-Flow is a variable-speed external pond pump that lets you switch between high and low RPM with a simple dial adjustment. Running at either 3450 or 1725 RPM, this pump gives you the flexibility to dial up flow when your system needs maximum turnover and dial it back for quieter, more efficient daily operation — no need for two separate pumps. Two models are available: the 1.65 HP unit delivers up to 9,600 GPH at 51 feet of head, and the 2.7 HP model pushes 12,780 GPH at 54 feet. Both feature 2-inch ports, making them compatible with standard koi pond plumbing. The smaller model offers dual 115V/230V wiring, while the larger runs on 230V. Variable speed is a genuine advantage for koi pond owners who want to reduce flow during feeding times, lower energy use overnight, or boost circulation when temperatures rise and dissolved oxygen drops. The Dial-A-Flow eliminates the compromise between power and efficiency — you get both in a single pump. It's a versatile choice for mid-size to large koi ponds where conditions change and your pump needs to adapt.
