Product: Polk Audio DB402 DB+ Series 4" Coaxial Speakers with Marine Certification, Black
Brand: Polk Audio
Color: Black
High performance audio upgrade that delivers signature quality sound that goes beyond OEM factory systems
Marine certified with IP55 rating (water- and dirt-resistant) and tested for salt-fog, UV and humidity
Polypropylene and UV tolerant cone with waterproof inner and outer surrounds
Simple drop-in installation for any vehicle including cars, boats, ATVs—you name it
Cut out Diameter - 4.09" Bottom Mount - 2" Top Mount - 1.79"

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