Hydrotherm 59-1071 Air Filter 30067439-890 While designed for cleanup

While designed for cleanup

providing a precise set point for vacuum detection

After installing the natural to propane conversion kit

Efficiency: Captures large airborne particles like dust

Enhanced Durability: The die-cast aluminum housing protects internal components better than plastic alternatives in high-heat mechanical rooms

Hydrotherm 59-1071 Air Filter 30067439-890 While designed for cleanupThe Hydrotherm 59 1071 Air Filter is a critical OEM replacement part designed specifically for the Hydrotherm KN series condensing boilers, including the KN6, KN10, and KN20 models. Engineered as a high performance combustion air filter, this KN20 air filter ensures a clean, debris free air supply to the burner, preventing premature fouling and maintaining optimal thermal efficiency. In high efficiency condensing boiler maintenance, utilizing genuine