BECKSON MARINE Beckson 1" Drain Plug Screw Type With Gasket-Black Part Should Be Mounted In A 1" Id Hole With Two S/S Fasteners And Positioned With Gap In Thread At Lowest Point. Ideal installation for transom of personal watercraft, small boats, fish wells, coolers, ice chests, water tanks, etc. Box Dimensions: 2"Lx2"Wx1"H. Weight: 0.1 lbs.