SAND TRAP HIGH-FLOW UPGRADE (7108.01)Sand Trap High Flow Upgrade (pictured with Sand Trap sold separately) The High Flow upgrade adds another hose connection at the top of the tank, allowing air to stay separated from the water flow, making it easier for the transfer of water into the next tank, especially for 8 to 12 gpm flow rates. Increase the capacity of your Sand Trap to 10 gpm+ for faster work speed! Allows for quicker and more efficient separation of air from water flow, and