gdbj wrote:
I got a Nutrafin CO2 counter kit. I had to return 2 boxes to the store
before getting one that had all the pieces in it! I wonder if there is a
connection? hmm... quality control?

Call me cynical, but I'd be more inclined to suspect theft at the retailer
than quality control issues at the manufacturer. It's not a sealed box, so
would be pretty easy for someone to sneak parts out. I suppose the boxes
could also accidently open during transport or such and lose items then.
But some retailers are having such an issue with theft of certain items
that they remove them to behind the counter. Anyways, like I said, it's
the cynical viewpoint, but from my experience, the three kits I got via a
mail order only shop had all the parts intact so it seems like the
manufacturer is packing everything correctly.