Take a 6” pipe and slide the Single Swivel Sockets (677-304HC) side that goes through onto the pipe.
Cap this pipe off with a Standard Railing Flange (673-204HC) on both ends. Tighten set screws on Flanges, butt Single Swivel Socket against Standard Rail Flange on bottom of leg then tighten set screws.
Attach a 6” pipe to the other side of the Single Swivel Socket (677-304HC) which is side of the fitting that does not go through. Tighten set screw.
Cap the end of that 6” pipe off with a Swivel Base (676-904HC) then tighten set screw.
Build this step 4 times
Attaching Legs to Bowl Holder
Attach the Swivel Bases (676-904HC) and Standard Railing Flanges (673-204HC) with the appropriate screws according to your substrate.