F accuracy for tight environmental control

the Lennox 51W15 is the approved direct replacement for legacy part numbers 51W1501

Key Benefits: Precise Flame Supervision: Employs advanced circuitry for reliable HVAC flame sensing and automated gas shut-off

The lead-free construction and robust internal components offer long-term performance in high-cycle environments where thermal expansion and fluid compatibility are critical factors for system uptime and mechanical integrity

always verify the hub orientation against the TNT2203-25SVC spec for your particular model

Armstrong International 75A3 Trap 30067439-890 F accuracy for tight environmentalThe Armstrong International 75A3 Trap is a high performance 3 4" NPT steam trap designed for industrial heating applications requiring efficient condensate removal and rapid air venting. As part of the prestigious Series A Cast Iron Float & Thermostatic Steam Trap family, this unit features a robust cast iron body and a thermostatic air vent equipped with a balanced pressure phosphor bronze bellows caged in stainless steel. Specifically engineered for