If a 24 hour circulation pump is being installed, it must have no less than a 23 GPM flow. Laing, Grundfos or Waterway Tiny Might pumps do not perform at this rate and cannot be used. The Aqua Flo Circ- Master is a good choice (linked below)
Click for Aqua Flo Circ Master Pumps
for more products like this one.
This control box is brand new and carries a (1) year warranty.