Anyone now of a cheap 50 to 30 amp adaptor? in Dock Talk Posted October 27, 2020 On 10/25/2020 at 9:44 PM, 2004lebanshee said: Kinda just creating a new thread. We frequent ceder point marina in lake erie and they only offer 50amp service. Now they rent the adaptor for like $10. I dont mind paying but I stress about everything and sometimes they get close to running out. I would feel better if I just owned my own. What do you got? Go to Definder.com and buy one.