Stainless Steel Internal Parts and Chrome Plated Steel Barrel
Keeps Water and Dirt Out of Hubs and Bearings
Makes Boat Trailer Wheels Safely Submersible
Spring loaded piston maintains slight, controlled pressure inside grease filled hub. Press on edge of piston for quick, reliable lubricant level check. If you can rock piston, hub is properly filled. Automatic pressure relief feature prevents overfilling and rear seal damage.
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