While this item can be used independently, this switch is designed as a replacement switch spec'd to fit Firestone's Pneumatic Control Panels, whether they are Single Path or Dual Path. This replacement is meant for both the metal & plastic control panels.
This item replaces the switch for the following part numbers: 2241, 2145, 2225, 2149, 2570, 2574 Long Part #: WR1-760-9074
