Pond filters with UV clarifiers are one of the most effective ways to keep your pond water beautifully clear, making both you and your fish happier. If your UV filter needs a replacement UV bulb, find the perfect fit in the collection below. Featuring UV replacement bulbs from a wide range of brands including Arcadia, Cloverleaf, Evolution Aqua, Hozelock and more, keep your pond looking pristine with the range of replacement UVC bulbs at Aquacadabra.