including the TF

making it ideal for primary steam mains and high-load heat exchangers

The Spence E-1 1/4 Valve is a cast iron pressure reducing valve engineered for high-demand steam

External Equalizer: Crucial for 8-ton systems to ensure accurate sensing of true evaporator outlet pressure

5-inch flanges to reduce downtime on the job site

Lennox 58W10 Header Box R-22 including the TFFor veteran HVAC technicians and mechanical contractors, the Lennox 58W10 Plastic Header Box is the standard OEM replacement required to maintain the structural integrity of the secondary heat exchanger assembly. This critical condensate collector box is engineered specifically for use in high efficiency Lennox gas furnaces, such as the EL92TB and EL95TB series, where managing acidic condensate is paramount. Precision molded from specialized high