JL Audio's fixture is designed to securely attach all ETXv3 enclosures to the OEM tower position on Four Winns boats, and can also be used for surface or deck mounting. Made from precision-machined marine-grade aluminum, it features a tough, clear anodized finish that ensures UV and corrosion resistance. The fixture set is designed to mount two ETXv3 enclosures and includes stainless-steel hardware, providing long-lasting durability.• Designed for Four Winns OEM towers and surface/deck mounting• Precision-machined from marine-grade aluminum• Clear anodized finish for UV and corrosion resistance• Includes stainless-steel hardware for durability | JL Audio ETXv3 Enclosed Speaker System f/ Surface/Deck Mount Four Winns Tower