Green Mountain Gold Trap - 16" EZ Cleanout Pay Streak Finder Fluid Bed SluiceUnlike traditional sluice boxes, the fluid bed sluice does not use a set of riffles, matting, or carpet to capture gold. Instead, they use a fluid bed of water, sand, and small pebbles in a collection tray that is cast into the sluice to trap gold. This version of a fluid bed sluice is a step above the rest. Constructed of clear polycarbonate (the same stuff bullet proof glass is made of), this stuff is virtually indestructible. Unlike most fluid bed