Description
Annual Maintenance Kit for Davey Steriflo XL60, UV50 & UV70 — Twin 20" Filter Configuration
Keep your Davey Steriflo UV system delivering safe, bacteria-free water with this complete annual service kit. UV lamps lose disinfection effectiveness after 12 months — even when still glowing — so annual replacement is essential.
Compatibility
| Compatible System | Filter Configuration | Lamp Part # |
|---|---|---|
| Davey Steriflo XL60 | 2 x 20" Cartridges | L-550-55-SF |
| Davey Steriflo UV50 | 2 x 20" Cartridges | L-550-55-SF |
| Davey Steriflo UV70 | 2 x 20" Cartridges | L-550-55-SF |
| ASHS60-08T / ASHM60-10T | 2 x 20" Cartridges | L-550-55-SF |
| ASHS60-08RB / ASHM60-10RB | 2 x 20" Cartridges | L-550-55-SF |
What's Included in This Kit
- Davey Steriflo XL60 Compatible UV Lamp – L-550-55-SF (replaces EGPH550N2W / GPH550N2/W)
- 20 micron Pleated Filter 20" Jumbo – 20JPL20
- 1 micron Sediment Depth Filter 20" Jumbo – SDC-45-2001
Why Replace Annually?
UV lamps degrade over time and lose their ability to neutralise bacteria, viruses, and protozoa after 12 months of operation — even when they still appear to be lit. Filters also accumulate sediment and contaminants, reducing flow rate and water quality. Annual servicing keeps your system performing to its rated specification.
Important: Resetting the Ballast
After replacing the lamp, follow the instructions in your System Service Manual to reset the 365-day countdown ballast back to 365. This ensures your system accurately tracks the next service interval.
How to Service Your System
- Turn off power and water supply to the system
- Allow the lamp to cool for at least 5 minutes
- Replace the UV lamp — avoid touching the glass with bare hands
- Replace both filter cartridges in order
- Restore water supply and check for leaks
- Power on and reset the 365-day ballast countdown
Matching Glass Sleeve
Also need a replacement quartz glass sleeve? See our replacement glass sleeves collection for compatible options.
Matching UV Lamp
Also need a replacement UV lamp only? See our replacement lamps collection for compatible options.
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