RDH Prospecting Power Sluice Header Box. The header box size is 8"L x6" W x 6" H. The header box comes with a 800-gph 12 volt pump and 4' of 3/4" hose. The header box will fit any 6" wide sluice like our RDH #22 sluice.On Some other brand of 6" sluices you will need to re drill the holes to make it fit.This item will let you turn a 6" sluice into a Power sluice or highbanker. Manufactured by RDH Prospecting in the USA.