Speakman sm-3420 sentinel mark ii regency pressure balance valve with lever handle the speakman sentinel mark ii shower valve line is designed to provide high quality anti-scald pressure balanced protection. Speakman sentinel mark ii valves feature an independent center sleeve which allows up to 1 of roughing in variation. Temperature can be adjusted through the temperature limit stops and the valves have a ceramic temperature regulating module. Sentinel mark ii sm-3400 valves feature polished chrome plated brass trim with a metal index plate and are vandal resistant. Each valve is equipped with integral stops. Sentinel mark ii valves provide superior protection down to 2.0 gpm. The sm-3420 features a metal lever handle for easy operation. The sm-3420 an s-2280 wall mounted showerhead. The sm-3420 is certified to meet asse 1016 and asme a112.18.1/csa b125.1 standards.