asm g2, external?

[pandimus]

I am just getting started into the hobby and a local fish shop is going out of business. They have an asm g2, but it would be too big for my sump (20 gal acrylic), is it possible to put it externally? Do you think 70 dollars is too much for this skimmer without a pump?

thanks

Pandimus

[cilyjr]

these are made to be internal skimmers.