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

preventing premature diaphragm failure

S1-03200153000

providing stable high-limit safety

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

McDonnell & Miller RS-1-LP Sensor Probe 30067439-890 40" WC Actuation: Ensures safeThe 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