Dual-Port Vent Pressure Switch 1191551

Technicians needing a reliable vent‐pressure safety component will trust the Vent Pressure Safety Switch (1191551). Engineered as a direct OEM replacement with dimensions approximately 3.8″ L x 3.25″ W x 3.05″ H, it monitors inducer or flue-gas pressure and closes at defined negative inches of water column (−0.30 in W.C., −0.75 in W.C.) to maintain system safety and proper sequence control. Built for fast drop-in installs without rewiring or modifications, the switch ensures consistent vent-system performance and peace of mind on every service call.