I have the Keene Super Mini Sluice Box (A51A) which is the miniature version of the A52 sluice. I DO NOT HAVE the Keene A51 Stream Sluice they are quite different. Anyway this A51A sluice is supported perfectly with the this stand and works perfectly. Interestingly, the 2 nuts attached to the screws that hold the center of flare in place ( under flare) have to be turned exactly parallel to the upper support cross brace of the stand. When you do this it sort of snaps in tight. As for the side brackets that hold the sluice in place I added wing nuts easier to tighten in the field. I also added a few small rubber washers between the side brackets and frame. This helps snug the fit easier. ( See Pictures).
