Are these good to have?

[Versatile]

I have a Progressive Industries cheater box for sell. I bought it to use with our RV so we would always have access to 50 amps. We have never used it so I am selling it. Time to stop hauling it around.

Below is the description from the manufacture.

"The Progressive Industries 50A Cheater box plugs into a 20A and 30A outlet on separate circuits to provide a 240V/50A service outlet, enabling coaches with 50A service to have full use of RV appliances. Cheater box includes a 30A to 15A adapter. Never worry again if the park is going to have your correct power to run your entire RV!

Progressive Industries Cheater Box (ADT-230) is designed to supply various amperage combinations for a 50A RV. Essentially the unit is (2) 30A connectors with a 30-15A adapter. This allows for numerous combinations: (2) 30A; (1) 30A and (1) 20-15A; or (2) 20-15A connections with an additional 30-15A adapter (not included).

The Cheater Box plugs into a 30 amp and a 20 amp plug or two 30 amp plugs on separate circuits to give user a 50 amp output. (A standard 50A RV receptacle supplies 100A of service)."