Comparison : Item # H-9013, Plunger (Zinc Plated)
Item # H-9014, Plunger (Zinc Plated)
Item # H-9015, Plunger (Zinc Plated)
Item # H-9016, Plunger (Zinc Plated)
Item # H-9017, Socket w/Rubber Insert, Regular Hole, Zinc