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Key Benefits Precise Pressure Regulation: Maintains a constant static pressure (CFM) by modulating the bypass damper
the Q4100C9068 is a direct cross-reference for the Norton 41-405N and Robertshaw 271D
Avoid the pitfalls of generic fits and ensure your furnace repair parts meet exact clearance tolerances for long-term reliability in the field
ensuring the unit maintains its original SEER and HSPF ratings without compromising ventilation system performance
McDonnell & Miller FS4-3S Switch 321142-301 Key Benefits Precise Pressure Regulation:The McDonnell & Miller FS4 3S (Part Number 114641) is a rugged general purpose liquid flow switch specifically engineered for high demand hydronic and industrial applications. This 1" NPT flow switch features a high grade stainless steel body and hardened stainless steel bearings to minimize friction and prevent mechanical failure in the field. Designed as the direct replacement for FS4 3S E, it integrates a Single Pole Double Throw (SPDT) snap switch
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