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Directory: Catalog > Water
Heaters > A.O. Smith > Repair Parts
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A.O. Smith Part 100335442: Controller, A421 Thermostat
- This is a non-stock item that we have shipped to you directly from A.O. Smith.
- Lead times can vary depending on the stock status of the part. If your need is urgent, please Contact Us prior to placing your order to find out stock status.
- We keep our customers informed. We will notify you of . . .
- . . . the expected ETA of your order after we have submitted it for processing.
- . . . the progress of your order.
- . . . the tracking number when your order has shipped.
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100335442: Controller, A421 Thermostat | |
All orders for AO Smith Water Heater parts will be held until Monday, May 6th
due to a computer systems change. All other product lines are shipping as usual.
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