The International Environmental 70005307 is an OEM-grade 7

refer to the specific valve body material and trim requirements

leak-free connection between the vent port and the external atmosphere or combustion chamber

blocked return grilles

Trane SWT1277 Limit Switch The International Environmental 70005307 isThe Trane SWT1277 Limit Switch is a critical safety component designed for precise thermal regulation in Trane and American Standard HVAC furnaces. As a high limit automatic reset switch, it monitors the supply air and heat exchanger temperatures to prevent hazardous overheating. This genuine OEM furnace limit switch features a 3 inch insertion length, ensuring accurate sensing deep within the plenum or blower housing. Operating on a normally closed