This is what I purchased.

Dimensions :
Product Height 5.79 inches
Product Width 2.75 inches
Product Depth 6.89 inches
Product Weight 1.54 pounds
Cost $19.99
http://www.radioshack.com/product/index ... Id=3909881
The built in air gauge is not to accurate ... + or - 5 psi at 35 psi. Since I use a stick gauge anyway, this does not bother me.
It took a couple of minutes to bring my rear tire from about 20psi to 35 psi.
Time will tell how long it lasts.
