Armstrong International 75A3 Trap R-410A Standardized Fit: Includes a factory-installed

Standardized Fit: Includes a factory-installed ball joint specifically machined for 5/16-inch damper rods

Extended Barrel Probe: The "U" model includes an extended probe length for specialized boiler tappings and high-insulation applications

This kit is a professional-grade solution specifically engineered for converting 90 Plus gas furnaces from natural gas to liquid propane (LP) operation

Maintenance Alerts: Integrated filter check monitor provides user reminders to protect system longevity and indoor air quality

this OEM replacement shaft coupling comes as a complete assembly with integrated set screws for secure shaft fastening

Armstrong International 75A3 Trap R-410A Standardized Fit: Includes a factory-installedThe 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