this deep-plead filter typically requires replacement once per year to prevent increased static pressure

40" WC Actuation: Ensures safe venting by verifying optimal negative pressure before gas valve ignition

Key Benefits Universal Compatibility: Specifically engineered to adapt obsolete ignition controls to modern flame rectification standards

making it an ideal choice for restoring HVAC system performance in older units

It ensures the damper returns to its default "normal" state (usually closed) during power interruptions

McDonnell & Miller RS-1-LP Sensor Probe 30067439-890 this deep-plead filter typically requiresThe McDonnell & Miller RS 1 LP sensor probe (part number 176203) is a specialized single level low pressure remote sensor engineered for precise liquid level detection in commercial and industrial hydronic systems. Designed for integration with low water cut off (LWCO) controllers, this unit features a durable 3 4 inch NPT tank connection, ensuring a leak proof seal within pressurized vessels. The low pressure probe sensor is optimized for