Replacement NSF UV Light 8GPM
Replacement UV Lamp for Excalibur NSF-Rated 8 GPM UV Systems
The Replacement NSF UV Light 8GPM (UVS 400269 / UVS NSF840) is the genuine replacement lamp for Excalibur NSF-rated UV Dynamics 840 8 GPM UV systems. Annual lamp replacement is the most important maintenance step to keep your NSF-certified UV system delivering verified water protection.
Why Replace Annually?
UV lamps lose approximately 20% of their germicidal output over 9,000 hours of use (roughly one year of continuous operation). For NSF-certified systems, maintaining the correct UV dose is especially critical — using the correct OEM replacement lamp ensures your system continues to meet NSF 55 Class A performance standards. Annual replacement ensures your system maintains 99.9999% (6-log) destruction of microorganisms year-round.
Specifications
- Model: UVS 400269 / UVS NSF840
- Compatible Systems: Excalibur NSF UV Dynamics 840 8 GPM NSF-rated UV systems
- Lamp Life: 9,000 hours (annual replacement recommended)
- Replacement lamp only — image for reference
When to Replace
Replace your UV lamp once per year, or when your system's annual lamp change timer, 28-day grace period alert, or lamp failure alarm activates. Do not wait for the lamp to burn out — replace on schedule to maintain NSF-certified performance.
Installation
Shut off the system and allow the lamp to cool before handling. Wear gloves — do not touch the lamp glass with bare hands. For step-by-step guidance, visit our System Guide or contact us for support.
✅ Authorized Excalibur Dealer — Genuine OEM NSF replacement lamp with manufacturer warranty support.