Please let me know if you should come into contact with these plugs. The one on the right is a genuine Lake & Air Plug mfg'd here in the USA. The plug on the left is a fake, I assume made to fit a PK float since it is smaller than our standard plug. This plug is very stiff and IS NOT made by Lake & Air. We would like to find the source of these plugs and at least have them remove our name and part number from the product. If anyone sees the plugs for sale please let me know. They look identical to ours except for the size so You'll need to know what your looking at or have a way to measure them.