The Sure-Flex Plus design is completely non-lubricated

Direct Cross-Reference: Fully compatible and identical to Lennox 34M7601

By maintaining a clean interface on the actuator stem

this replacement thermostat cover serves as a durable barrier against physical impact and environmental debris

Common Questions: Is the Honeywell 204480 interchangeable with the 204480/U

Hydrolevel 24SV Low Water Cut-Off 30067439-890 The Sure-Flex Plus design isThe Hydrolevel 24SV Low Water Cut Off is a heavy duty electronic safety control designed for 24Vac hot water boiler applications. Engineered with a compact NEMA 1 enclosure, this unit is built for tight residential and light commercial boiler rooms where space is at a premium. The Hydrolevel 45 245 utilizes a specialized EL1214 SV sensing probe, which features a shorter length (2 1 16" insertion) specifically designed to fit into standard 3 4" NPT