No water hot side 1990ish Delta shower valve — Heating Help: The Wall
Delta Faucet Linden 17 Series Dual-Function Shower Handle Valve Trim Kit, Chrome T17094 (Valve Not Included) 5.50 x 8.00 x 9.00 inches - Faucet Trim Kits - Amazon.com
Interchangeable Shower Valve with MultiChoice® Technology | Delta Faucet
Delta T13391 Chrome Single Handle Shower Valve Trim with Push Button Diverter and Metal Lever Handle from the Commercial Series - Faucet.com