The Voyager Stream pump is designed to be one of the quietest stream pumps on the market. You may already be familiar with them, but did you know that the streams of water that come out of the pump actually spiral? How about that adjusting the dial on front doesn't restrict the flow, but actually adjusts how much the flow spreads out in front of the pump? Did you know that the pumps are designed to work better on wavemakers because the impeller can spin in either direction? Sicce is introducing new propeller pump. They are extremely small but offer flows up to 2100gph. This pump does use a traditional bumper to control the direction of flow, but is designed to be quieter than the usual click and clack from most propeller pumps. They will make a DC version of the new pump that will have a controllable flow rate. The Syncra pumps are typically 30% cooler and quieter than other similar products. Because they are designed to be more efficient, they often can save a significant amount of money in electrical bills over the course of their lifespan. We were lucky enough to get a look at the new Syncra HF controllable pump. It is a high flow pump that can have the speed of the pump controlled. Most controllable pumps run on DC power so that they can vary the voltage to vary the speed of the motor. The new Syncra HF controllable pump actually uses AC power on their controllable pumps. Connect with us on Facebook: http://www.facebook.com/BulkReefSupply Check out our pics on Instagram: http://instagram.com/bulkreefsupply