Pipe-Tytes, Inc. in making American made plumbing parts and accessories right in the State of Florida. They make a very unique device called a Toilet Kart used to move and place toilets in place. You can see a video of that product on their website.
Their site also features their Pipe-Tytes Insulators for metal studs, ET5 Metal Stud Punch, Add-A-Hanger, Suspension Clamps, Pipe Clamps. All of these are American made plumbing parts.