Product Description
G303 GPH303T5L UV Lamp, 15/16W, for Sita 028110 and Wonder Models
The G303 (GPH303T5L) is a 15/16W replacement UV lamp. It fits the Sita 028110 (SITA 403-UVLAMP-16W) and is part of our Wonder UV parts range.
Specifications
| Lamp code | GPH303T5L (G303) |
| Power | 15/16W |
| Fits Sita | 028110 (SITA 403-UVLAMP-16W) |
| Fits Wonder models | W-180, E-180, C-180, HC-180, CE-180, HE-180, PC-3, F-3, FC-3, FS-3, ES-3, ET-3 |
Check before you order
Check the bulb code on your existing UV lamp and go by that reference.
Signs you need this part
- The lamp was last changed 12 months ago or more
- The lamp no longer lights
- Your system is showing a lamp warning or fault
Why it matters
UV lamps lose output gradually and well before they stop lighting, so they are normally changed every 12 months rather than when they fail.
How to fit it
- Isolate power to the UV system and let the lamp cool.
- Remove the old lamp following your system manual.
- Fit the new lamp, handling it by the end cap and avoiding the glass.
- Reconnect the lamp and refit any cover.
- Restore power and confirm the system runs normally.
Technical Resources
Frequently asked questions
