?kohree kohree 50 amp to 30 amp rv adapter 18", heavy duty rv dogbone electrical plug adapter with grip handle, nema 14-50p to nema tt-30r, 125v/3750w, etl listed 50m/30f 18'' is up for auction in Automotive. The current bid is $3.00, 80% below the $14.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.