Streamline Collars are the anode of choice for propeller shaft protection as the football shape minimizes turbulence and drag.
These anodes feature precise internal sizing for maximal contact with the shaft for best protection.
All Sea Shield zinc anodes conform to Mil Spec MIL-A-18001 for maximum protection.
• Designed by divers, for divers
• Captive Allen Head fasteners for easiest underwater installation - no slot for the driver to slip out of
• Threads are tapped into the anode for super easy installation - no cross-threading, no galling
• Lock washers prevent loosening under vibration
• Made in California, USA