Remove unwanted algae efficiently with Alpine Corporation's 40 Watt UV Clarifier. This ultra violet water clarifier kills suspended algae with UV light. As water passes through, the rays of an ultra-violet lamp (located inside each unit) eliminates green water by making the algae clump together so it can be removed by pond filters. Pair with one of our filters to get your pond looking fresh and clean! With a 1-year Support, you can be confident in the quality of your purchase. Measures 36"L x 6"W x 5"H for out of water use. Alpine Corporation is one of America's leading designers, importers, and distributors of superior quality home and garden decor products. Alpine Corporation's award winning in-house design team continuously develops new and innovative "statement pieces" for your home and garden. Your indoor and outdoor living spaces will be the envy of the neighborhood with our wide assortment of fresh, fashionable and contemporary products, from beautifully crafted solar garden stakes featuring patented motion and fiber optic lighting technology to beautiful fountains and delightful bird baths and feeders.