Product details:
Thermal Post Purge Kit, For Use With Mfr. Model Number SWG-4HDFeaturesIncludes: (1) Post Purge Switch Assembly; (2) #8 x 3/8 Sheet Metal Screws; (3) Electrical Wiring ConnectionVoltage: 24VAC/120VACItem: Thermal Post Purge KitFor Use With Mfr.