Description
The Lochinvar & A.O. Smith 100217958 is a factory-specified differential dip tube engineered for use in commercial and residential water heaters. Measuring 3/4″ x 3″ x 42″, this dip tube is designed to direct cold incoming water to the bottom of the tank, promoting proper thermal stratification and maximizing the delivery of hot water at the outlet.
Key Features
- OEM part number 100217958 — direct factory replacement for Lochinvar and A.O. Smith water heaters
- Differential dip tube design promotes efficient hot water stratification within the tank
- Dimensions: 3/4″ inlet diameter x 3″ x 42″ length for precise fit and function
- Engineered to minimize cold water mixing at the top of the tank, improving hot water output efficiency
- Durable construction built to withstand the thermal and pressure demands of water heater operation
- Genuine OEM replacement ensures compatibility and reliable long-term performance
Application
- Designed for use in Lochinvar and A.O. Smith water heater models requiring a differential dip tube
- Suitable for both commercial and residential water heating applications
- Ideal for service technicians performing maintenance or restoring water heater efficiency
Why Replace Your Dip Tube?
A worn or failed dip tube can cause cold water to mix directly with hot water at the tank outlet, resulting in lukewarm water delivery and reduced system efficiency. Replacing the dip tube with this genuine OEM part restores proper tank stratification, ensuring consistent hot water availability and optimal energy performance.







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