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Remarkable. Revolutionary. Ultraviolet Disinfection.

The best water quality starts with the SpectraLight SL-450. Built on the same trusted UV 2.0 platform as the rest of the SpectraLight lineup, the SL-450 brings higher dose throughput in the same compact 37″ housing as the SL-400 — perfect for residential pools that need a little more headroom.

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 residential pools up to ~20,000 gallons

The SL-450 is matched to circulation pumps moving 55–70 GPM — typical for residential pools in the 15,000–20,000 gallon range. If your pool is larger or you want extra disinfection headroom, step up to the SL-500 or SL-550.

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.