auger style 1.5L zeo reactor (quick review)
 

quick and short review:

good: does an awesome job stirring up the media. better mixing action than pumping. no o-rings with screws that come undone like on some pump-style reactors.

bad: be very careful turning it counter clockwise as it jams quite easily and requires lots of wrist strength to un-jam. The bigger zeo rocks will jam it anyways. "1.5L" reactor only holds about 1.0L because the auger takes up lots of space.

overall: not bad. win some, lose some.