Honeywell V8043F1036 3/4" Sweat Zone Valve with Screw Terminals and End Switch None Made in USA Manual opener for valve operation on power failure; valve returns to automatic position when power is restored May be installed without disassembling the valve Compact construction for easy installation Complete powerhead may be removed or replaced without breaking plumbing line connections or draining the system Actuator motor may be replaced without removing the valve body or draining the system