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11 watt PLS UV replacement Bulbs/Tubes use Ultra Violet light to rid your pond of nuisance algae cells and keep the water as clear as possible.

Left unchecked, algae can cause a real problem in your pond. Using up oxygen, light and nutrients it can leave fish and plants in poor conditions and as a result in poor health. We guarantee a long service life from our UV lamps, thanks to the top quality materials used. So you can be confident of a healthy, clear pond all summer long.

Key Features:

• Swell 11w PLS Bulbs are a single ended, twin tube with two pins at one end.
• High UV output allows for greater algae control.
• Can be used on: Oase, Blagdon, Fish Mate, Hozelock (not EasyClear models), Aqua Medic UV's and any other UV device that requires PLS UV Bulbs.