
Excalibur NSF 55 Certified UV Disinfection System – 14 GPM Whole Home
NSF-Rated UV Disinfection Chamber for Mid-to-Large Homes
The UV Light NSF Rated 14GPM by Excalibur is a high-capacity ultraviolet disinfection chamber for residential and light commercial point-of-entry water treatment. With a 14 GPM flow rate and NSF 55 certification, it delivers verified, chemical-free protection against bacteria, viruses, and protozoan cysts for mid-to-large homes and cottages.
⚠️ Pre-filtration required: This is a UV chamber only and requires existing sediment and carbon pre-filtration upstream. If you need an all-in-one system with pre-filters included, see our Signature UV Optimum series.
Who It's For
Ideal for properties that already have sediment and carbon pre-filtration installed and need a mid-to-high capacity NSF-certified UV stage. Well-suited for homes with 2–4 bathrooms, acreages, cottages, and small commercial or industrial applications requiring certified water disinfection.
What It Does
UV disinfection exposes water to ultraviolet light at 254nm, destroying the DNA of microorganisms and rendering them unable to reproduce. At a 40,000 mJ/cm² UV dose, this system achieves 99.9999% (6-log) destruction of bacteria, viruses, and protozoan cysts — including E. coli, Giardia, and Cryptosporidium — with no chemicals, no taste impact, and no harmful byproducts.
Key Features
- Flow Rate: 8–20 GPM (rated at 14 GPM)
- UV Dose: 40,000 mJ/cm²
- Certification: NSF 55 certified
- Destruction Rate: 99.9999% of bacteria, viruses & protozoan cysts
- Lamp: Up to 112W, long-lasting coated UV lamp
- Lamp Life: 9,000 hours with annual change timer & 28-day grace period
- Controller: Isolated solenoid drive with dynamic flow regulator
- Cold Spot Fan: Included for consistent UV output
- Power Supply: AC up to 240V, 47–63Hz
- Chamber Material: 304 Stainless Steel
- Max Operating Pressure: 100 PSI
- Water Temperature Range: 4–25°C
- Inlet/Outlet: 3/4" or 1"
Pre-Filtration Requirement
UV disinfection is most effective when water is clear and free of sediment and chlorine. This unit must be installed downstream of existing sediment and carbon pre-filters. If you don't have pre-filtration in place, contact us and we can recommend the right setup. Visit our System Guide for more information.
✅ Authorized Excalibur Dealer — Full manufacturer warranty support. Replacement lamps available.

