while it is durable

8-inch by 6

Smith 100110588 Flow Switch is a critical safety and monitoring component engineered for high-efficiency hydronic systems

System Reliability: Protects high-speed centrifugal bearings by maintaining ultra-clean lubricant through the 15-micron secondary filtration stage

Key Benefits Direct OEM Replacement: Replaces factory part A229 with identical mounting footprints and wiring terminals

Fenwal 35-615922-125 Module 326070-701 while it is durableThe Fenwal 35 615922 125 is a professional grade 24VAC DSI module specifically engineered for Greenheck make up air units and high demand gas fired appliances. This microprocessor based direct spark ignition control provides precise sequence management, integrating an inducer blower relay to coordinate combustion airflow with the ignition cycle. As a veteran preferred HVAC ignition control board, it features DETECT A FLAME technology for robust flame