I have a reef octopus 6000ext for sale. Skimmer is about 3 years old and only used for about 1.5 years. Runs great and comes with most/maybe all original pipes, original box (does have some water damage but will work for shipping)
and packing also have a neck extender on it. No cracks/chips or major scuffs. Just got it as clean as I could. Looking for $650 shipped.