Keep your garden’s pond clean and safe with the Alpine Corporation 15" Bio Pure Pressure UV C Filter. This outdoor pond filter uses a multi stage biological and mechanical filtration process that uses UV filtering to provide maximum filtration and clear and quality water for a healthy pond up to 1,000 gallons. The durable foam pond filter features 7 watt cool white UVC, and a large surface to provide long lasting quality use and increased filtration. It naturally cleans pond pollutants and sifts out debris, while allowing good, beneficial bacteria to thrive in its natural environment. For added convenience, the foam filter utilizes a unique external pressure indicator. This cleaning indicator helps to notify you when the filtration system is properly functioning and when cleaning the filter is necessary. The filtration system requires no assembly and is easy to install. The discreet filter system measures 11"L x 11"W x 15"H and is meant to be partially buried, and it includes a one year manufacturer's Support from purchase date. 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.