| Feature | Equipment Serial Number | Filter Lot/Date Code |
|---------|------------------------|----------------------|
| Location | Machine nameplate | Printed on filter body or box |
| Format | Alphanumeric (e.g., R1234A56789) | Often YYWW or MMDDYY format |
| Purpose | Identifies specific machine & build | Tracks filter production batch |
| Used for | Ordering correct filter | Warranty / shelf-life verification |
We do not discuss this lightly. Using the wrong filter—or a filter with an unverified serial number—can lead to dangerous outcomes. robinair filter serial number
A: Even if your machine is rarely used, change the filter every 12 months. The desiccant inside has a shelf life. Look at the filter’s manufacture date from its serial number. If the filter was made 18 months ago, it is already degraded – do not install it. | Feature | Equipment Serial Number | Filter
