New in Box. Never used. $100
retails for $140
See detailed description at
https://www.boatid.com/marinco/eel-pigtail-adapter-125v-30a-f-50a-m-mpn-p503-30.html
Great to keep on board when visiting marinas with 50A hookups
15 Amp to 30 Amp $ 30.00
Single 50 Amp male to Single 30 Amp female $ 100.00
50 Amp Female double to 30 Amp male double $ 180.00
Locking and water resistant coupling $10.00
If you're local to Sue Creek in MD you could save shipping.
Thanks for looking....