"PiggyBack" Mains plug.

Eribanaut

Whilst at the NEC show I noticed that Westfalia models and the new Eribas had a mains lead with a 240v take-off socket 'piggy-backed" on the van connection.

Neither sales team knew if they were available or where to obtain them.

Does anyone know where these may be sourced?

Cheers, in advance.