HIBLOW WG-2 Pond Air PumpHiblow WG Series linear air pumps are a brand new line from a company with nearly 50 years of experience building reliable, energy-efficient, quiet air pumps! This new line is specifically focused on uses in backyard ponds and other applications in ornamental water features.The WG Series is intended for use 24 hours a day, seven days a week and up to 365 days per year!Oil-free operation eliminates danger of contamination in your pond!Linear diaphragm design for quick, inexpensive repair of worn pumps (Pumps can be rebuilt a couple of times for extended use!)Includes pressure tap location for external alarm sensorThese 120vAc / 60Hz pumps are UL ListedOutside diameter of outlet is 18mm (0.71″)Comes with rubber elbow to adapt to 3/8″ ID tubing1 Year Manufacturer WarrantyModel: WG-2Rated Air Flow/Loading Pressure: 40 Lpm @ 12.8 kPaRecommended Pond Size: Up to 16,000 GallonsWatts: 30Maximum Recommended Depth: 6’Dimensions: 9″ x 6.75″ x 7.5″