JL Audio MM55 Premium Compact Marine Source Unit with Full-Color LCD Tanks Mechanical seal is made of

Mechanical seal is made of nitrile with carbon ceramic faces

Inflatable PFDs with 2" webbing

Manual Control: No

bearing & stud kit Manufacturer Part #: TA100

JL Audio MM55 Premium Compact Marine Source Unit with Full-Color LCD Tanks Mechanical seal is made ofMM55 Premium Compact Marine Source Unit with Full Color LCD MediaMaster 55 is a premium, compact marine source unit engineered to deliver high fidelity sound and advanced audio features for all your maritime adventures. Constructed with a tough, water resistant (IP67 rated) design, this single chassis receiver features a bright 2. 8 inch (71 mm) full color display and an intuitive interface with backlit controls for easy operation day or night. A