CONFIRM THE PART FITS
Collar 020172-21
Part #020172-21
Replaced by #020172-021
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Manufacturer substitution
This part replaces 020172-21. Substitute parts can look different from the original.
Online Price
$2.16
In Stock
For ZIP codes near Edit
This part fits
Top models using the same part
| Model Name | Model Number | Diagram Name |
|---|---|---|
| Model #GPSX50100 AO Smith gas water heater | GPSX50100 | Water heater |
| Model #GPSX50101 AO Smith gas water heater | GPSX50101 | Water heater |