Installation For Models: 678-1338 l?! ! w PLUMB WORKS e Shower Diverted TOOLS NEEDED FOR INSTALLATION: Read instructions thoroughly before installation! This installation requires the following supplies: Wrench or pliers, rags, pipe compound or thread seal tape, shower amm and flange (if existing shower arm has ball at the end.} When using wrench or pliers, always protect finishes by wrapping parts with a cloth. Follow steps below, as required for your installation: 1.