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Master Lock 2847DAT Adjustable Coupler Lock$9.99
This trailer coupler lock offers flexible security with six adjustable locking positions ranging from 9/16 in to 2-3/4 in. Made of stainless steel, it’s built to resist rust and corrosion, while the water-tight cap protects the lock from moisture and dirt. Whether you're securing a trailer, boat or camper, this lock provides reliable protection and easy installation.