T515 Wonder GPH303T5L Replacement UV Bulb – 15W (G303)
The T515 Wonder GPH303T5L 15W UV replacement lamp (G303) is a high-quality ultraviolet bulb designed for reliable UV water disinfection across a wide range of Wonder UV and Sita UV systems. Manufactured to deliver consistent UV-C output, this lamp helps maintain safe, bacteria-free water in both domestic and light commercial applications.
This lamp is also compatible with the SITA 028110 / SITA 403-UVLAMP-16W, making it a versatile replacement option within mixed or legacy UV installations.
Key Features & Benefits
✅ Effective UV Water Sterilisation
Provides powerful 15-watt UV output to inactivate bacteria, viruses, and microorganisms, ensuring safe and clean water without chemicals.
✅ Wide System Compatibility
Part of the Wonder UV replacement parts range, this lamp fits multiple Wonder UV models as well as selected Sita UV systems, reducing the need for system-specific spares.
✅ Reliable Performance
Designed for consistent UV intensity throughout its service life, helping your UV system perform at peak efficiency.
✅ Simple, Hassle-Free Replacement
Direct replacement design allows quick lamp changes, minimising system downtime and maintaining uninterrupted water protection.
Compatible Systems
Wonder UV 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
Sita UV Compatibility:
- SITA 028110
- SITA 403-UVLAMP-16W
Technical Specifications
| Feature | Specification |
|---|---|
| Lamp Power | 15 Watts |
| Lamp Type | GPH303T5L |
| Lamp Code | G303 |
| UV Application | UV water disinfection |
| Pin Configuration | 4 pin |
| Product Range | Wonder UV replacement parts |
Important Notes
- Always check the lamp reference code on your existing UV bulb before ordering.
- UV lamps should typically be replaced every 12 months to maintain effective sterilisation, even if the lamp still illuminates.
