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π§ Crystal Clear Pond Water β High-output 6W T5 UVC tubes help eliminate green water by neutralising free-floating algae as water passes through your UV clarifier. Restore clarity fast and keep your pond looking healthy. π True 6W Germicidal UVC Performance β Precision engineered quartz glass ensures optimal ultraviolet transmission for maximum sterilisation efficiency and improved filter performance. π§ Universal T5 2-Pin Fit (210mm) β 210mm tube length (225mm including pins). Double ended with 2 pins at each end. Compatible with most pond UV clarifiers and filtration systems requiring a 6W T5 UVC bulb. π Recommended Annual Replacement β UVC output reduces over time even if the lamp still lights. Replacing every 12 months maintains peak algae control and filtration efficiency. π¦ Twin Pack β Great Value β Includes 2 x 6W Aqua-Terra Lighting UVC replacement tubes. Ideal for seasonal changeovers or keeping a spare ready.