Lennox 68K21 Furnace Combustion Air Blower AssemblyThe Lennox 68K21 Furnace Combustion Air Blower Assembly delivers reliable combustion air for compatible Lennox furnaces. This precision built air blower assembly supports efficient burner operation and helps maintain steady flame performance across varying heating demands. Designed as a Type Air Blower Assembly, it operates at 115 Volt AC at 60 Hertz with a 2. 5 Amp current draw and a responsive 3400 RPM. This package is ready for installation and

delivering consistent performance across temperature ranges and pressure levels

Inclusions include a 2 to 5 PSI spring to suit balancing needs

and AFG compatibility for easy substitution

Goodman 0130F00004 is a high-quality pressure switch designed for Goodman HVAC systems

Large blue display (12 sq in) with easy navigation and precise setpoint control (45–99°F)

regulated venting

this module meets strict safety standards

long-lasting performance

1" NPT port connections (1" threaded x 1" threaded)

The Caleffi 551022A Compact Air Separator combines a 3/4 inch nominal size with soldered end connections and a durable brass body

and process control lines where precise pressure monitoring is essential

Spring-return (SR) design for fail-safe operation