It looks like Amazon has some sort of sale on few higher end Delta items, including some of their dust collectors:
50-763 3 HP single phase: $336.69
50-765 5 HP single phase: $694.46
50-762 3 HP 3-phase: $400.64
50-764 5 HP 3-phase: $486.65
These prices are before the $50 off $300 discount and do not include shipping. With shipping and a9 discount, the 50-763 comes out to be $406.73.
Other items from Delta marked "limited-time offer" include:
43-460 shaper
28-348F 14" bandsaw
28-348G 14" bandsaw
37-361 12" jointer
33-400 14" radial arm saw
36-835 motor for feeder
50-763 3 HP single phase: $336.69
50-765 5 HP single phase: $694.46
50-762 3 HP 3-phase: $400.64
50-764 5 HP 3-phase: $486.65
These prices are before the $50 off $300 discount and do not include shipping. With shipping and a9 discount, the 50-763 comes out to be $406.73.
Other items from Delta marked "limited-time offer" include:
43-460 shaper
28-348F 14" bandsaw
28-348G 14" bandsaw
37-361 12" jointer
33-400 14" radial arm saw
36-835 motor for feeder
