Master Lock® Adjustable Stainless Steel Coupler Lock


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  • Adjusts to 5/8", 1" and 2" openings  
  • Rugged 100% stainless steel construction  
  • Maximum protection at a reasonable price  
Nothing says "back off" to a thief quicker than Master Lock! Keep your boat safe and sound 24/7 with the Master Lock Adjustable Stainless Steel Coupler Lock! This high-quality coupler easily adjusts to 5/8", 1" and 2" openings. Tough, durable 100% stainless steel construction with Master Lock brand strength built right in. Maximum protection without spending a bundle.
Rated 4 out of 5 by 3 reviewers.
Rated 2 out of 5 by trailer lock-adjustable stainless coupler 2nd one I have had trouble with - hard to insert keys into lock - keys do not seem to fit well - requires silicone spray to work - fit and finish is not up to standards... October 22, 2013
Rated 5 out of 5 by Coupler Lock Not much to review on this item. It's Master Lock quality and it fits and works as it should. September 27, 2013
Rated 5 out of 5 by excellent product I used it on my 2013 Ranger trailer. It works perfectly. July 15, 2013
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