Jack Cover, (John Higson Cover, Jr.), American physicist and inventor (born April 6, 1920, New York, N.Y.—died Feb. 7, 2009, Mission Viejo, Calif.), spent most of his career in aerospace but became famous in the mid-1970s for inventing the TASER, a handheld weapon that fires darts attached to insulated wires to deliver debilitating electric shocks at ranges of up to several metres. Cover’s goal was to devise a nonlethal means of stopping violent acts, such as riots and hijackings. Though the TASER was initially classified as a firearm because the darts were propelled by gunpowder, in 1993 Cover used compressed nitrogen to activate the darts; the modification allowed the public to purchase his invention. The TASER name (a registered trademark) was a modified acronym from the title of one of Cover’s favourite childhood books: Tom Swift and His Electric Rifle.
Features: ---Strong Fine Mesh Screen --- Extra Strong Galvanized Steel Roof Flange with Mill Finish --- Vent Color is White --- Includes 70" of 3/4" Butyl Tape ---Includes 28 screws for mounting the roof vent --- No Garnish Ring --- Will replace existing Elixir or Ventline Products --- Standard OEM Dimensions (Opening 13.25" x 13.25") Mounting Flange (16.5" x 16.5") Power Vent Options Available (Visit our store for the listing) * Garnish not included.
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-One connector plugs directly into OEM tow package wiring harness - no cutting or splicing required. vehicle's wiring matches that of your trailer Powered module connects directly to avoid overloading your vehicle's electrical system Constructed of 16-gauge bonded wire Comes with dust cap for 4-way flat
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-One connector plugs directly into OEM tow package wiring harness - no cutting or splicing required. vehicle's wiring matches that of your trailer Powered module connects directly to avoid overloading your vehicle's electrical system Constructed of 16-gauge bonded wire Comes with dust cap for 4-way flat
Jack Skellington's empty eye sockets and stitched-up grin can be scary, but "Nightmare Before Christmas" fans know he's a fun-loving guy. Show who your favorite character for installation Specs: Fits 1-1/4" x 1-1/4" and 2" x 2" trailer hitch receivers Face measures 4-1/2" wide x 4" tall 1-Year warranty Hitch covers are fun to show off and they look cool,

The former, obviously, and through personal experience, is much harder to use than the latter. However, the primary benefit of the manual jack is that it COULD be less prone to breaking since it is a simpler device. The electric trailer jack could fail electrically or mechanically. The electric trailer jack will also require installation or some know-how as far as wiring goes. 

Extreme Max BoatTector all-purpose buoys are designed for Extreme Max BoatTector all-purpose buoys are designed for use in most marine conditions from high seas to calm lakes. Versatile design is perfect for use as a marker buoy in most applications. Constructed of UV and chemically resistant PVC. 2-year limited warranty.  More + Product Details Close
We highly recommend getting yourself an electric trailer jack. Marshall has always had one on his Lance, and Kelly just recently got our #1 recommended Husky electric jack after almost three years living with a manual jack, and she couldn't be happier. For Kelly, it was one of those "Why didn't I do this a long time ago" reactions. Oh well, nothing like living in the present and not bitching a fit every time you have to hook up! No more worries about Kelly's back going out because of her jack. Her back is jacked, but her back won't go out due to a jack. Something like that. 
Replaces the bottom housing kit for Husky Brute Series HB4500 and HB4500R electric trailer jacks (HT87641 and HT87247). Kit includes covers to protect both the gearbox and the motor assembly from Features: Replaces the bottom housing kit for Husky Brute Series HB4500 and HB4500R electric trailer jacks Fits HT87641 and HT87247 Included covers protect both the motor assembly and the gearbox
EXCELLENT QUALITY 100% Solution Dyed Polyester means Sun-DURA® colors are part of the polyester fiber itself, rather than the dye adhering only to the surface of the fibers. 7oz. marine grade polyester that offers superior resistance to harmful UV rays, fading, mildew, tearing and overall wear-and-tear. Our own unique finish provides exceptional water repellency while maintaining breath-ability for the health of the electric jack components. Made in USA 
From the center of the shaft to the front outside edge of the motor housing is 3-1/2 inches. I included some of the mounting plate when I measured for height, which is 8-1/4 inches, since that sticks out over the shaft as well. I also measured from the bracket that fixes to your trailer's A-frame to the bottom of the mounting plate for the motor and that measured 13 inches. See included picture for a visual. To make sure that you have a secure power connection to the jack motor I recommend...
Ball Screw Drive MechanismThe ball screw drive uses ball bearings (rotational friction) that offers superior performance over metal-on-metal gear mechanisms (sliding friction) used by other manufacturers. Ball screw drives use less power, have better lifting capability, provide quieter operation, and offer additional benefits.Ball Screw Drive Mechanism
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...
The cover has worked great. The reason for only 4 stars is that we took preventative measures when it arrived. Many reviews complained about it leaking. We turned it inside out and sealed all the seams. Once dry, we put a plastic bag on first and then this cover. Using both has made a water/weather proof cover to protect the electronics of our power lift. The plastic on its own is not strong enough, adding this cover made the difference.
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