This is a portable sluice box that I designed for backpacking. There are two styles of riffles to choose from. The whole system is modular, so you can use as many or as few sections as you want, and what riffles you want to use. Each section is connected using a connector. Designed to use the water current. As you can see in the pictures, I have to use a small water pump (link below) powered by an inverter due to lack of current.

https://a.co/d/51ggEh6