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Remarkable. Revolutionary. Ultraviolet Disinfection.

The best water quality starts with the SpectraLight SL-400. You’ll enjoy a pool that is safe, healthy, and easier to manage. SpectraLight is a remarkable, scientifically proven, disinfection system that uses the power of ultraviolet light to create water that is safe, healthy, and easier to manage — and eliminates the need for virtually all chemicals.

Why pool owners choose UV-C sanitization

  • Destroys 99.9% of bacteria, viruses, and algae as water passes through the chamber
  • Eliminates 100% of combined chloramines — no more red eyes or chlorine smell
  • Reduces chlorine use by up to 50%, often paying for itself in chemical savings
  • UV 2.0 Ultra High Output lamp delivers 4× the power of standard lamps

Sized for smaller residential pools

The SL-400 is the entry point of the SpectraLight family — perfectly sized for pools up to about 15,000 gallons with typical residential pump flow rates. Need more capacity? Step up to the SL-450, SL-500, or SL-550.

Recent Studies Expose Dangers of Pool Chemicals

Recent scientific studies are turning the pool industry upside down by exposing the dangers of high-chlorine pool environments — prompting the World Health Organization to issue a statement that lower free chlorine concentrations may be health protective when UV is used. Over 200 leading aquatic centers have already attested to the effectiveness of ultraviolet disinfection in both destroying pathogens and rejuvenating water quality.

Customer Reviews

5.0 Stars
★★★★★
★★★★★
Based on 73 reviews
★★★★★
xavier krenger
October 22, 2024

ICO works great. I can’t imagine my pool without it. It also helps me spend less on chemicals.

★★★★★
Gilles Renner
September 30, 2024

This really helps me take care of my pool. It’s simple to use and works well. I highly recommend it!

★★★★★
Bri1951
September 22, 2024

It’s very handy and works well.

★★★★★
Jean-Marie
July 30, 2024

I’ve used ICO for 2 years and I’m happy with it. I wish I could make a data table so I can note what I’ve done.

★★★★★
Alain Bliquy
July 27, 2024

I wish there was a quick guide for fixing pool levels, like “add chlorine to raise ORP.” That would help a lot.

★★★★★
Chouchou 27
July 25, 2024

Very helpful app that goes with the ICO sensor. The info is clear. It would be nice if we could tap “OK” for simple notices (like cold water). Also, when buying a new probe, a small tool for changing it would be great.