The Ideal Horizons IH-20L is a discontinued UV system from Ideal Horizons prior to their merger with Wedeco. The IH-20L is a short no frills industrial UV system with a nonresettable elapsed running time meter for 99,999 hours, a LED display panel for visual indication of lamp status, and optional narrow band UV meter, overheat safety control, and wiper systems. The IH-20L is capable of 430 gallons per minute and requires 20 lamps and sleeves.