Armstrong International 175A3 Trap 30067439-890 the 47-21776-86 is the updated

the 47-21776-86 is the updated factory replacement for that model and several other previous iterations

Smith units

Durable Construction: Built to withstand the constant static pressure in air handling units (AHUs)

tool-free water level calibration to meet specific site requirements

designed to provide exact mechanical alignment and power transmission for Lennox

Armstrong International 175A3 Trap 30067439-890 the 47-21776-86 is the updatedThe Armstrong International 175A3 is a high performance Series A Cast Iron Float & Thermostatic Steam Trap engineered for demanding industrial and HVAC applications. Designed with a 3 4" NPT connection and a 7 64" orifice, this F&T steam trap provides continuous drainage of condensate while efficiently venting air and non condensable gases through its integral thermostatic air vent. It is specifically optimized for heat exchange equipment where