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.
NEW Improved Size! (as of 9/12/17) 14″H x 5″W x 10″D. At Carver Industries, we don’t strive to build the least expensive product. We strive to build The Best quality product at a very competitive price. With over 30 years experience fabricating products that withstand the rigors of the outdoor elements. The RV electric jack cover protects your unit from UV damage and environmental hazards. Universal RV electric jack covers are an excellent solution for protecting the finish and prolonging the original appearance of these systems. Each cover has 1/8″ strong and durable draw rope with a barrel cord lock in the hem for quick easy installation and removal. Recommended for storage only. 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 and Imported. (7 Year Limited Warranty)
After what seemed like a hundred cranks, your trailer is lifted enough to attach the hitch to your truck, but your arm feels ready to fall off. An electric trailer jack can save your arm by lifting your trailer hitch with just the touch of a button. Most electric jacks use 12V power, so you can hook them up to a battery while you are out on the go and not worry about finding an outlet. Most models also include a manual jack handle as well so you can still lift the trailer, even if your battery runs out of power. The Barker electric trailer jack is a commonly found option, and the VIP 3500 can handle most campers and travel trailers, as it is rated to lift up to 3,500 lbs. This model lifts trailers up to 18 inches, so you can easily attach your trailer to your truck or SUV. There are many electric trailer jack options available with many lift capabilities, and with the large inventory available on eBay, you can lift your trailer with the touch of a button in no time.
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 
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

This fits nicely on our travel trailer power jack. We purchased it to stop the sun fading the black jack. Although we purchased and started using this a couple months ago, after days of heavy rain here recently we thought it would be prudent to check under it today. Yes, it is not waterproof BUT it was only damp under there and all the electronics still worked so we were happy. Let's face it, the manufacturers make the jacks to be weatherproof so a bit of water/damp should not hurt them. I do like another reviewer's idea of putting a plastic bag on first and then putting this cover on top though. A great idea!
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