Universal Kayak Drain Plug
thingiverse
Seems to fit the drain plug on most sea kayaks I have played with. Sweet features: -> Loop a lanyard through the hole on top to keep it from floating off into the nether. -> The gear pattern around the base should help you torque it down nicely. -> There is space at the base of the threads to throw a gasket in. (exacto blade + rubber sheet type adventure here....) Printing in PETG with 100% infill & the cap on bottom and threads on top seems pretty solid. let us know if anything fails out there if you give this design a crack. Enjoy!
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