• Choose Currency :

Bulb Finder

COVID-19 – All orders are currently being delivered within our usual timeframe – learn more

Pond Filter UV Light Replacement Bulbs

Germicidal lamps need to be changed once a year for you to maintain clear, algae and bacteria free water in your garden pond. Knowing which bulb fits which pond filter can be tricky so we’ve listed the most common Hozelock filters and matched them to our replacement germicidal PLS TUV UVC (ultra violet) bulbs.

Choose your filter from the list below:

Pond filter bulbs




13W GX23 - with two lugs each side of the base

13W G23 - only one lug on each side of the base

Alternatively, if you know which lamp you are looking for you can browse by type:

Please note Germicidal Lamps emit UVC radiation at 253.7nm that is dangerous to the human eye. These lamps should not be used for general illumination

ultraviolet radiation

Unit 11A, Lane End Industrial Estate, Lane End, High Wycombe
Buckinghamshire HP14 3BY United Kingdom
Tel: 01494 880099 | Fax: 01494 880092 | Email:sales@generallamps.com