these are made by Anderson power products, Most good electrical supply houses will carry their goods, so I would check locally with places that deal with that type of thing, This may save you some shipping time, or get you a new sponsor!
the number you will need to ask them for is
6331g1
Anderson power products
SB 50 series
find other part numbers, or different housing colors(blue,yellow,green,orange)
NOTE: only like color connectors will mate with one another, IE cannot put a blue and a red together so for additional ones like the kit only order part 6331g1 as per the frist KOP List, Thanks BrianBSL here
part number list
To find your local Anderson dealer go
Distributors list
Also it is possible to open the crimp on the connectors they give us, with something to spread the sides of the crimp apart you can then pick/pull the wires out and re crimp(if you have proper equipment, if not crimp and solder! ) so as to make one less joint in your electrical system.
