Danze D130000BT 1H 4-Port / 3-Outlet Diverter Valve 1/2 IPS/Copper Sweat Ports for Shower Systems - Rough Brass [D130000BT] - $133.65 : FOCAL POINT || Top Quality Hardware and Plumbing - Kitchen & Bath
Shower Diverter Valve with Shut Off for Fixed Shower Bathtub Faucet - Bed Bath & Beyond - 34117434
3-Way Shower Diverter Valve and Trim Kit - Thermostatic Brass Shower Mixing Valve with 3 Square Knobs Control Handles for Shower System Replacement, Brushed Gold - Amazon.com
American Standard Flash 3-Way Integrated Shower Diverter Rough-In Valve with Pressure Balance Valve Cartridge RU531 - The Home Depot
How to repair replace 3 way Shower Faucet Diverter - FAST & EASY! - YouTube
The Ultimate Guide to Shower Diverter Valves: How It Works and Its Imp – Rbrohant
Great selection of shower arm diverters and valves
Brass Shower Arm Diverter Valve for Handheld Shower Head and Fixed Spray Head G1/2 3 Way Universal Bathroom System Component Replacement Part, Polished Chrome - Amazon.com