The Syncra Silent line of pumps come in many different sizes and will fit most tank needs. Sicce uses high quality magnets in their pumps, which allows them to spin smoother with less noise than almost all other pumps in their price category. If your tank needs a high flow return pump, or a smaller pump for a low flow reactor our first choice will always be Sicce. Quiet, energy-efficient pump for a variety of uses in wet or dry application. Use in salt or freshwater. Features: 5 Year Motor Warranty with online registration Synchronous motor and advanced rotor result in 100% silent operation Adjustable flow rate Ceramic shaft and bearings Durable rotor and shaft Applications: saltwater aquariums, protein skimmers, indoor fountains Submersible or in-line use 5.47psi Specifications Output: 1321 GPH Maximum Head Height: 12.6 Ft Power Consumption: 105W Inlet: 1\” Female NPT or 1\”-1 1/4\” Hose Outlet: 3/4\” Female NPT or 3/4\”-1\” Hose Dimensions: 6.81\” x 3.90\” x 4.65\” Cord Length: 6 ft Warranty: 5yr (motor)/6 month (impeller) QUICK COMPARE – SICCE SYNCRA SILENT SUBMERSIBLE PUMPS Model No. Flow Rate Power Consumption Amps Head Maximum Inlet/Outlet Dimension (Inches) 0.5 185 GPH 8W .12 4 Ft 0.5\” – 0.7\” 3.5\” x 1.9\” x 2.8\” 1.0 251 GPH 16W .25 5 Ft 0.5\” – 0.7\” 3.5\” x 1.9\” x 2.8\” 1.5 357 GPH 23W .43 6 Ft 0.6\” – 0.8\” 4.0\” x 2.4\” x 3.0\” 2.0 568 GPH 35W .65 6.5 Ft 0.8\” – 1\” 4.9\” x 3.0\” x 3.8\” 3.0 714 GPH 48W .43 9.9 Ft 0.8\” – 1\” 4.9\” x 3.0\” x 3.8\” 3.5 660 GPH 68W .7 12.5 Ft 1\” – 1.2\”/0.8\” – 1\” 6.8\” x 3.4\” x 4.4\” 4.0 951 GPH 85W .85 12.5 Ft 1\” – 1.2\”/0.8\” – 1\” 6.8\” x 3.4\” x 4.4\” 5.0 1321 GPH 105W .95 12.6 Ft 1\” – 1.2\”/0.8\” – 1\” 6.8\” x 3.4\” x 4.4\” HF 10.0 2500 GPH 145W 1.7 16.4 Ft 1\” Barb – 1\” MPT 11.38\” x 6.29\” x 6.69\” HF 12.0 3200 GPH 165W 1.9 17.05 Ft 1.5\” 11.38\” x 6.29\” x 6.69\” HF 16.0 4200 GPH 190W 2.0 15.4 Ft 1.5\” 11.38\” x 6.29\” x 6.69\”