Cartridge Combo bilge pump is equipped with a non-clogging electro-magnetic float switch for automatic operation. The 500 Gallons Per Hour to 1000 Gallons Per Hour pumps has easy-to-install Dura-Port discharge ports to eliminate stress cracking caused by overtightened hose clamps. The pumps will be delivered including both a straight and a 90 Degree smooth elbow Dura-Port as well as a removable check valve.• Type: Automatic Submersible• Voltage Rating: 12 Volt• Flow Rate: 1000 Gallon Per Hour• Port Type: 3/4 Inch Hose• Length: 4.72 Inch• Width: 3.3 Inch• Height: 4.41 Inch• 500 Gallons Per Hour, 750 Gallons Per Hour, And 1000 Gallons Per Hour Pumps Are Delivered Including Both A Straight And A 90 Degree Smooth Elbow Dura-Port As Well As A Removable Check Valve• Meets The International Standard, ISO 8849 Marine Water-Cooled Motor For Long Service Intervals Compact, All-In-One Motor Or Impeller Unit With Stainless Steel Shaft 500 Gallons Per Hour, 750 Gallons Per Hour, & 1000 Gallons Per Hour Pumps Have Easy-To-Install Dura-Port Discharge Ports To Eliminate Stress Cracking Caused By Over-Tightened Hose Clamps | Johnson Pump Bilge Pump, Automatic Submersible; 1000 Gallon Per H