I do a lot of shipping and separate boxes is usually worse unless the items are very heavy and you are tying to stay under a freight weight. If 72Dart6pack is right about it being 10 pounds that is still $37. I reduced the box size to 8x8x12 (looks like it may fit in that) and it is still $37 USPS. If it is 8 even better: It goes down to $31 in one box. In two boxes, even if the pump is 6 pounds by itself, shipping for the pump is $25 and the brackets are $11 or $5 more expensive. Even if 72Dart6pack is right about 8 pounds, once it is in the box with packing, we are still locking at around 10 pounds. Are you willing to pay $37 shipping?