A 6105 will reach both ends at 18V, the flow has a 7ft reach at full power, this would largely come down to the controller program. Every 6V increase equals roughly 800gph, we measured roughly 3300 gph at 24V and the wattage increases to 28-30W from 22-24 used at 18V. The jumpers are free if you want to try them, I just need your name, address and model and quantity of power supply- either 6101.240 or 6105.240.