4” U brackets w/U bolts $60.00: 4 inch U brackets are used for floating dock installations and can be used when using a 4 inch post adapter. If you are side mounting a jet ski to a 512 you will need the 4 inch post adapter as well.
4” Ext. Brackets w/U bolts $120.00: 4 inch Extender brackets are extendable to accommodate docks with pilings that stick out farther than the normal U bracket. We use these 90% of the time. If you are side mounting a 512 with a jet ski you will need a 4 inch post adapter as well.
6” U brackets w/ u bolts $70: These brackets are used with the 6 inch post adapters.
6” Extender brackets w/ u bolts $135: These brackets are are extendable to accommodate docks with pilings that stick out farther than the normal U bracket. They are used with the 6 inch post adapters. They can also be used with our older boat dock the Ultra EQ.