The Ultra-Fab Electric A-Frame Jack # UF38-944017 is a great choice for your 2009 Sunnybrook Edgewater Travel Trailer. It has the industry standard mounting of 3 inches on center to mount to your coupler and has an 18 inch lift. The round footplate is a 6 inch diameter for great support and stability. It has a 9/16 inch bolt that will allow you to use a deep well socket to extend of retract if the battery fails. You may also be interested in the Ultra-Fab Protective Cover # UF38-944020...
Back up your vehicle to the coupler of your hitch. Center the ball directly under the coupler (duh, right?). Lower your jack down so that the coupler connects with the ball and you raise up the jack up until it can't go up any more. (Don't raise jack all the way up yet if you have a weight distribution hitch that requires you to lift the hitch as well as the back of the tow vehicle.)
The sealed, maintenance-free, 12V motor on this electric jack maintains high speeds, even with heavy loads. Extra-large, articulating footplate prevents sinking. Remote control has a 10' long Features: Electric landing gear jack lets you quickly and easily level and stabilize your trailer when used as part of a set Single-speed, 12V DC motor maintains a high speed, even with heavy loads
The Camco Electric Tongue Jack Cover helps protect your electric tongue jack when it is not in use and in storage. The durable 3-layer spunbond polypropylene provides protection from harmful UV rays, excess moisture and dirt and debris. Tongue Jack Cover accommodates most styles and brands of Electric Tongue Jacks, and measures 18" tall x 7.5" wide x 8.5" deep.