I have a NYOS Quantum 120 that came with a Reefer 170 I purchased that I do not plan to use. I've tested it while cleaning & it runs perfectly.
It does have a chip in the skimmer cup & 2 on the lid. They do not affect the performance, unless your cup is overflowing & at that point it will drain out of the cup rather than flowing out of the holes in the top of the lid. (see pics)
Because of the chip I'm listing at $250 (shipped lower 48 w/paypal fees), I've seen these list for around $300. I called & the cup is like $40 to replace if wanted.
It does have a chip in the skimmer cup & 2 on the lid. They do not affect the performance, unless your cup is overflowing & at that point it will drain out of the cup rather than flowing out of the holes in the top of the lid. (see pics)
Because of the chip I'm listing at $250 (shipped lower 48 w/paypal fees), I've seen these list for around $300. I called & the cup is like $40 to replace if wanted.