Polk Ultramarine 7.7" Speakers - White Latches Extra rugged for salt water

Extra rugged for salt water durability

Battery x three (3)

Includes mercury-free float switch and dash mounted alarm

Outlets: 3

Polk Ultramarine 7.7" Speakers - White Latches Extra rugged for salt waterUltramarine 7. 7" Speakers White Polk's Ultramarine speakers are designed to produce maximum sound in marine applications. Featuring "Air Suspension" technology and high temperature voice coils, the Ultramarine family of speakers will crank up to 200 watts. These powerful 7. 7" marine speakers have rugged, removable sport grilles that stand up to sunlight and moisture. Underneath, you'll find UV treated silver polypropylene cones, durable surrounds,