Is this subwoofer enclosure worth getting?

Question

http://www.walmart.com/catalog/product.do?product_id=3661254

It's cheaper by like 40 dollars than anything else, and it says that it has the same dimensions and stuff. Whats the difference if any between that and the more expensive...

http://www.crutchfield.com/S-VtCTA2vvnyo/App/Product/Item/Main.aspx?i=044Q12S125

Answer 1

Have them tested to hear the difference. You can't tell by just looking at them.