New Little Giant Pumps for sale, cheap! SOLD. THANK YOU J&am

New Little Giant 3MDQX-SC (750 GPH, skimmer power!) Now $125
New Little Giant 3MDQ-SC (1100 GPH, circulation!) Now $125
Both pumps ran overnight in my system. I tried to return them to J&L ,( I am very sensitive to mechanical noise), but they can not accept a pump which has been used, even overnight. They are packaged as original, and in the back room at J&L. ( They are also trying to sell them for me, and know the story on them).

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Would this serve as a skimmer then? I have a 150 gallon would it be sufficient?

Thanks