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Aquafine 250450-TS20 UV Lamp / Bulb for VL410 TOC

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Guaranteed Genuine Aquafine #250450-TS20 Original Equipment Lamp. Don't be Fooled by Knock-Offs!

Aquafine #250450-TS20 Replacement Lamp

  • Description
  • Specifications
  • Installation / Manual
  • Reviews
  • FAQ
  • Why Genuine

This is a genuine Aquafine OEM replacement lamp and should be replaced every 12 months for optimal sterilization and safety.

Aquafine #250450-TS20 replacement lamps are designed only for use in VL Series UV sterilizers. We do not recommend that you attempt to use Aquafine replacement lamps in models made by other manufacturers.

Aquafine #250450-TS20 is the replacement lamp for the following models:

  • Aquafine VL410 TOC
  • Aquafine VL410-ATS
  • Aquafine VL410-AT
  • Aquafine VL410-TT
  • Aquafine VL410-TTS

Aquafine 250450-TS20 Specifications

Technical Specifications
Part # #250450-TS20
Lamp Length 20" (50.8cm)
Lamp Power 46 Watts
Lamp Life 12 Months

How to change an Aquafine #250450-TS20 Lamp

Lamp replacement is a quick and simple procedure requiring no special tools.
The UV lamp must be replaced after 9000 hours of continuous operation (approximately one year) in order to ensure adequate performance.


  • Always disconnect power before performing any work on the UV system.
  • Always shut-off water flow and release water pressure before servicing.
  • Regularly inspect your UV system to ensure that the power indicators are on and no alarms are present.
  • Replace the UV lamp annually (or biennially if seasonal home use) to ensure maximum performance.
  • Always drain the chamber when closing a seasonal home or leaving the unit in an area subject to freezing temperatures.
  • Do not use water during replacement of UV lamp.


  1. Shut off the water line to chamber and release system pressure before servicing.
  2. Disconnect main power source and allow the unit to cool for 10 minutes.
  3. Remove the lamp connector by squeezing the plastic locking tabs on the side of the connector.
  4. Remove the lamp in upward direction from the chamber and lamp connector base.
  5. Always hold the lamp at the ceramic ends.
  6. Insert the new lamp fully into the chamber leaving about two inches of the lamp protruding from the chamber.
  7. Attach the connector to the lamp and note that the connector will only allow correct installation in one position.
  8. Push the lamp connector against lamp connector base together until an audible click is heard.
  9. Re-pressurize the system to check for leaks.
  10. Hold down the timer reset button and reapply power to the controller until you see rSET, then release timer reset button.
  11. A 5 second delay will occur until you hear an audible tone and LED display will read 365 once again.

Aquafine #250450-TS20 Replacement Lamp Reviews


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Aquafine #250450-TS20 Replacement Lamp Customer Questions & Answers

Question:How often to change this filter?

Technically the Pentek GAC 20BB is rated for 25,000 gallons @ 4.0 gpm (95,000L @ 15 Lpm) when used for chlorine taste and odour reduction. I use it on highly chlorinated city water and change it when I notice the chlorine smell coming back.
By HomePlus Water on Apr 29, 2024

It is critical that only genuine Trojan Aquafine brand original equipment lamps be used in your Aquafine system. It has come to our attention that a number of Chinese manufacturers are making knock-off replica UV lamps. While they may physically fit in an Aquafine system, they are NOT compatible. Testing of a wide range of these lamps has shown that many do not provide a safe UV dose or offer protection for the stated lamp life, and in some cases have even caused the failure of the ballast/controller and melting of the lamp harness.

The use of Non-Genuine lamps will void safety certifications (UL, CSA etc.) and damage other system components such as connectors, lamp plugs and ballasts leading to even higher operations and maintenance costs and increased maintenance. We only sell Genuine OEM replacement parts.