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Replacement UV Bulbs

UV pond bulbs are a safe way to clarify pond water and remove algae. As with any light source, UV pond bulbs will need replacing over time. Choosing your replacement UV pond bulbs will come down to the type of UV filter system you have. UV pond bulbs, again like any bulbs, have various types of fittings and come in different wattages.

UV pond bulbs work by removing algae from the water as it passes through the light source. The UV rays destroy the DNA and the algae dies. To make sure your UV clarifier or steriliser is working at maximum capacity, it is wise to check the bulbs regularly. When UV pond bulbs lose some of their power, some of the high levels of UV light could be lost too, resulting in algae growth. 

Finest Filters has a large selection of replacement UV bulbs, including a 24W UV Bulb with PLL Fitting, which fits many of the leading types of steriliser. We also have replacement UV bulbs for the popular Laguna Pressure Flo Filters, like the 20w 4 Pin UV Bulb, which is suitable for the Laguna Pressure Flo 8000. 

Always check which wattage and type of fitting your filter system needs before purchasing UV pond bulbs to make sure you get the right ones. If in doubt, please contact us and we can guide you through the replacement UV bulbs we have in stock.

You can also find information about filters and how to care for your pond in both winter and summer by taking a look at our helpful guides. 

Filters

£
£

Replacement 36W UV Bulb - PLL Fitting

£0.00 - £0.00
£0.00
£10.99
£10.99 - £10.99
£10.99
In stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£10.99
£10.99 - £10.99
£10.99

Replacement 18W UV Bulb - PLL Fitting

£0.00 - £0.00
£0.00
£8.99
£8.99 - £8.99
£8.99
In stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£8.99
£8.99 - £8.99
£8.99

Replacement 24W UV Bulb - PLL Fitting

£0.00 - £0.00
£0.00
£9.99
£9.99 - £9.99
£9.99
In stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£9.99
£9.99 - £9.99
£9.99

10w / 11w 4 Pin UV Bulb Suitable for Laguna Pressure Flo 2500 / 5000

£0.00 - £0.00
£0.00
£11.99
£11.99 - £11.99
£11.99
In stock

Finest Filters quality replacement UV bulbs compatible with Laguna Pressure Flo 2500 and 5000 pond filters. These bulbs have a 4 pin fitting at one...

View full details
£0.00 - £0.00
£0.00
£11.99
£11.99 - £11.99
£11.99

36w UV Bulbs PLL Fitting - Twin Pack

£0.00 - £0.00
£0.00
£20.99
£20.99 - £20.99
£20.99
In stock

For optimum effectiveness, it is recommended to change the UV bulbs every 6-12 months. Regular replacement will keep your pond water clear and free...

View full details
£0.00 - £0.00
£0.00
£20.99
£20.99 - £20.99
£20.99

Replacement 25w UV Bulb - Linear Type

£0.00 - £0.00
£0.00
£9.99
£9.99 - £9.99
£9.99
In stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£9.99
£9.99 - £9.99
£9.99

Replacement 55w UV Bulb - Linear Type

£0.00 - £0.00
£0.00
£16.99
£16.99 - £16.99
£16.99
In stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£16.99
£16.99 - £16.99
£16.99
Sold out

Replacement 55W UV Bulb - PLL Fitting

£0.00 - £0.00
£0.00
£15.99
£15.99 - £15.99
£15.99
Out of stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£15.99
£15.99 - £15.99
£15.99
Sold out

24w UV Bulbs PLL Fitting - Twin Pack

£0.00 - £0.00
£0.00
£18.99
£18.99 - £18.99
£18.99
In stock

For optimum effectiveness, it is recommended to change the UV bulbs every 6-12 months. Regular replacement will keep your pond water clear and free...

View full details
£0.00 - £0.00
£0.00
£18.99
£18.99 - £18.99
£18.99

11w UV Bulbs PLS Fitting - Twin Pack

£0.00 - £0.00
£0.00
£11.99
£11.99 - £11.99
£11.99
In stock

For optimum effectiveness, it is recommended to change the UV bulbs every 6-12 months. Regular replacement will keep your pond water clear and free...

View full details
£0.00 - £0.00
£0.00
£11.99
£11.99 - £11.99
£11.99

18w UV Bulbs PLL Fitting - Twin Pack

£0.00 - £0.00
£0.00
£14.39
£14.39 - £14.39
£14.39
In stock

For optimum effectiveness, it is recommended to change the UV bulbs every 6-12 months. Regular replacement will keep your pond water clear and free...

View full details
£0.00 - £0.00
£0.00
£14.39
£14.39 - £14.39
£14.39

9w UV Bulbs PLS Fitting - Twin Pack

£0.00 - £0.00
£0.00
£10.99
£10.99 - £10.99
£10.99
In stock

For optimum effectiveness, it is recommended to change the UV bulbs every 6-12 months. Regular replacement will keep your pond water clear and free...

View full details
£0.00 - £0.00
£0.00
£10.99
£10.99 - £10.99
£10.99
Sold out

20w 4 Pin UV Bulb Suitable for Laguna Pressure Flo 8000

£0.00 - £0.00
£0.00
£13.99
£13.99 - £13.99
£13.99
Out of stock

Finest Filters quality replacement UV bulbs compatible with Laguna Pressure Flo 8000 pond filters. These bulbs have a 4 pin fitting at one end and ...

View full details
£0.00 - £0.00
£0.00
£13.99
£13.99 - £13.99
£13.99
Sold out

25w 4 Pin UV Bulb Suitable for Laguna Pressure Flo 12000

£0.00 - £0.00
£0.00
£15.99
£15.99 - £15.99
£15.99
In stock

Finest Filters quality replacement UV bulbs compatible with Laguna Pressure Flo 12000 pond filters. These bulbs have a 4 pin fitting at one end and...

View full details
£0.00 - £0.00
£0.00
£15.99
£15.99 - £15.99
£15.99

Replacement 30w UV Bulb - Linear Type

£0.00 - £0.00
£0.00
£14.99
£14.99 - £14.99
£14.99
In stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£14.99
£14.99 - £14.99
£14.99

Replacement 13w UV Bulb - PLS Fitting

£0.00 - £0.00
£0.00
£7.49
£7.49 - £7.49
£7.49
In stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£7.49
£7.49 - £7.49
£7.49
Sold out

5w UV Bulbs PLS Fitting - Twin Pack

£0.00 - £0.00
£0.00
£7.89
£7.89 - £7.89
£7.89
Out of stock

For optimum effectiveness, it is recommended to change the UV bulbs every 6-12 months. Regular replacement will keep your pond water clear and free...

View full details
£0.00 - £0.00
£0.00
£7.89
£7.89 - £7.89
£7.89
Sold out

13w UV Bulbs PLS Fitting - Twin Pack

£0.00 - £0.00
£0.00
£14.49
£14.49 - £14.49
£14.49
In stock

For optimum effectiveness, it is recommended to change the UV bulbs every 6-12 months. Regular replacement will keep your pond water clear and free...

View full details
£0.00 - £0.00
£0.00
£14.49
£14.49 - £14.49
£14.49

Replacement 15w UV Bulb - Linear Type

£0.00 - £0.00
£0.00
£7.99
£7.99 - £7.99
£7.99
In stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£7.99
£7.99 - £7.99
£7.99
Sold out

Replacement 5w UV Bulb - PLS Fitting

£0.00 - £0.00
£0.00
£5.99
£5.99 - £5.99
£5.99
Out of stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£5.99
£5.99 - £5.99
£5.99
Sold out

Replacement 8w UV Bulb - Linear Type

£0.00 - £0.00
£0.00
£6.99
£6.99 - £6.99
£6.99
In stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£6.99
£6.99 - £6.99
£6.99

7w UV Bulbs PLS Fitting - Twin Pack

£0.00 - £0.00
£0.00
£11.39
£11.39 - £11.39
£11.39
In stock

For optimum effectiveness, it is recommended to change the UV bulbs every 6-12 months. Regular replacement will keep your pond water clear and free...

View full details
£0.00 - £0.00
£0.00
£11.39
£11.39 - £11.39
£11.39

Replacement 12w UV Bulb - Linear Type

£0.00 - £0.00
£0.00
£7.49
£7.49 - £7.49
£7.49
In stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£7.49
£7.49 - £7.49
£7.49

Replacement 6w UV Bulb - Linear Type

£0.00 - £0.00
£0.00
£6.99
£6.99 - £6.99
£6.99
In stock

The Finest Filters replacement UV bulbs will fit many of the popular brands of UV sterilizer. Please check what wattage and fitting type of bulb yo...

View full details
£0.00 - £0.00
£0.00
£6.99
£6.99 - £6.99
£6.99