A handle pin helps secure the handle assembly on a compatible 3-way valve, and this Grid Controls version uses the 3005 reference. Small valve hardware like this is important because the handle connection needs to stay intact for the valve to operate predictably during adjustment.This part has practical value because a worn, missing, or damaged handle pin can make a diverter valve feel loose or unusable even when the main valve body is still serviceable. A properly matched replacement pin helps support cleaner handle retention and contributes to more dependable valve control.This type of part is especially useful during valve repair when the issue is isolated to handle hardware instead of the entire valve assembly. That helps keep the repair smaller, more efficient, and more dependable.Installed in the proper application, this handle pin helps support cleaner valve operation and better overall control feel. Handle pin for compatible 3-way valve applications Helps secure the valve handle assembly Useful when replacing missing or damaged handle hardware Supports cleaner valve control and retention Improves service accuracy and operating confidence