AQUACLEAR POWERHEAD 70 1514L/H AKV. < 265L - 220 240v - Output without air: 1514 L / 400 U.S. Gal. per hour - Output with air: 1317 L / 348 U.S. Gal. per hour - Reverse Flow: 659 L / 174 U.S. Gal. per hour - Recommended Aquarium -- (1 PH) 283 L / 75 U.S. Gal. -- (2 PH) 567 L / 150 U.S. Gal.