Polk 10" Subwoofer Ultramarine - Black Arctic Shield 3003 HD-Series Battery Switch Selector

3003 HD-Series Battery Switch Selector with Alternator Field Disconnect

Excellent visibility for aircraft and helicopter SAR

United States Coast Guard Approved Type lll Personal Flotation Device

30A Installation Tool

Packaged in a 50ml cartridge and can be mixed by hand or by using our AT-300 gun and mixing tips

Polk 10" Subwoofer Ultramarine - Black Arctic Shield 3003 HD-Series Battery Switch Selector10" Subwoofer Ultramarine Black Polk's marine subwoofers have always been known for intelligent design, impressive sound, and weather resistance. The UMS108 sub continues this tradition with solid construction that stands up to the elements. The UMS108 is made to kick out deep bass under challenging conditions. Its mica reinforced polypropylene cone handles up to 350 watts RMS, and the stiffness of the cast aluminum basket gives you the clean, hard