Aquascape Pro Air 20 Pond Aerator, Energy Efficient Aeration Compressor, Out-door Rated | 61017 PRO-GRADE AERATOR: Ideal compressor for aerating ponds and water features up to 5,000 gallons HEAVY DUTY: metal housing is built to last and rigorous construction standards ensure years of trouble-free operation QUIET AND EFFICIENT: 45-Watt compressor is powerful, yet quiet, reducing distracting noise levels and energy-efficient performance lowers operating costs QUICK AND EASY INSTALLATION: Pre-installed fitting and check-valve reduces setup time LEADING WARRANTY COVERAGE: Backed by a 3-Year Limited Warranty by Aquascape Inc, the leading pond and water feature innovator in North America for over 25 years.