Avalon Tub And Shower Offset Handle Single Control Knob For Delta Replacement Trim Kit With Screw And Button, Clear Acrylic Finish | Wayfair
4″ Tub/ Shower Diverter with Single Control Knob- Chrome- “Concord” | R & G Supply, Inc.
1 Pair Thermostatic Control Handles Mixer Shower On Off Valve Handles Faucet Water Control Valve Head Bathroom Accessories - AliExpress
Thermostatic Control Handle On Off Water Control Hand Wheel Shower Mixer Tap Valve Flow Switch For Bathroom Faucet Repair Parts - Faucet Cartridges - AliExpress
BrassCraft Temperature Control Single-Lever Handle in Chrome for Mixet Tub and Shower Faucets MXT09 - The Home Depot
How to Replace a Shower Handle | HomeServe USA
Moen Clear Knob Shower Handle in the Shower Faucet Handles department at Lowes.com