You can check Building3dcontent.com and also request Aqutherm. They are not difficult to Build if you decide to build yourself.

The other poster Keastman17 seems to have lost his way not knowing this is a Fabrication Forum as opposed to some other software he suggested to buy to get a Library. (Most be a Salesman)  Aquatherm does have a Free Revit Library of there fittings you can use in Revit or Convert to Fabrication without the added costs as he suggested.