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Polk Ultramarine 7.7" Speakers - Black [UMS77BR]
Polk 10" Subwoofer Ultramarine - Silver [UMS108SR]
![Polk Ultramarine 7.7" Speakers - Black [UMS77BR]](http://marinetechonline.com/cdn/shop/products/74611XL_250x.jpg?v=1539406360)
![Polk 10" Subwoofer Ultramarine - Silver [UMS108SR]](http://marinetechonline.com/cdn/shop/products/74604XL_250x.jpg?v=1539406338)