Universal 7-Inch Fit: Precision-engineered for Utica and Dunkirk boiler models requiring a 7" vent diameter

This valve uses 1/4" barb connections for the common and normally closed ports

Key Benefits Reliable Flame Detection: High-grade rod material withstands constant heat exposure to maintain a precise microamp output

For the 5/16-24 contact terminals

making it an ideal drop-in replacement for common field units from GE

McDonnell & Miller FS4-3T2-3/4 Switch THPU32HP7Y Universal 7-Inch Fit: Precision-engineered forMcDonnell & Miller?FS4 3T2 3 4 3 4" NPT In Line Medium Flow Rate Liquid Flow Switch with Snap Acting SPDT Switch (Part Number 114900)