Check the listing for details. Matala Immersion Ultraviolet Clarifiers. Condition: New. Listed at 149.00 USD. The Immersion UV is now available in 16 watt, 25 watt, 40 watt and 75 watt. These are a “drop-in” style UV designed to go directly into an open filter tank. With high quality Phillips Lamps these are surprisingly rugged and versatile. Why spend the money on a complete UV when you can just “drop in” a Matala Immersion UV?Features and Benefits:Ensures clear waterDisinfects water efficiently and safelyPrevents germsSafe and easy to useKeeps the formation of mold, bacteria and algae under controlIncludes a special built-in electronic pre-selector for a constant power supplyIncludes a PHILIPS UV-C lampEasy installation and maintenanceGrounded power cordCan be used for several applicationsSpecification/ModelIMS-16WIMS-25WIMS-40WIMS-75WIMS-150WLamp T516 Watt25 Watt40 Watt75 Watt75 Watt x 2Voltage100-240V, 50/60hz (Special ballast for full range voltage)Max. Suggested Pond Size2,200 gal 8,330L3,500 gal 13,250L5,500 gal 21,000L10,500 gal39,700L20,500 gal77,600LDimension: L1 (in/mm) 12.0/306 22.4/568 34.1/867 34.1/867 34.1/867 Dimension: L2 (in/mm) 14.0/356 24.4/619 36.1/917 36.1/917 36.1/917