The MAX-Tank Fresh Water System is designed to carry 50 gallons of fresh water and easily transfer it into your RV. The system includes a 50 gallon, high-density, UV stabilized polyethylene tank, with a vented, screw-on cap. The fresh water system comes pre-installed, with high-quality bulkhead and brass 1/4 turn inlet plumbing. It also includes a custom-designed 12V water transfer pump on an aluminum mounting plate that can be inserted into your hitch receiver, 7-Pin plug for power source, and pump-mounted on/off switch. The 10' & 25' top-quality freshwater transfer hoses help make transferring water easy. 10' & 25' top-quality freshwater transfer hoses 7-Pin plug for power source | Max-Tank The Fresh Water System