Philips TUV 25W G25T8 ultraviolet lamp.
Used for Air and Water Disinfection in Private Water Supplies, Air Conditioning and Pond UV Filters.
Osram and Ledvance also manufacture 25 watt ultraviolet lamps.
We also stock replacement quartz sleeves. These are supplied with O Rings to ensure a watertight seal. The most popular size is 415mm x 30mm Open.
We recommend changing your Quartz Sleeve after 2 years as they will become discoloured over time which blocks out useful uv-c light.