VEVOR
This is a repair or upgrade part for RV or campsite wiring, not a travel essential. If your existing outlets and fittings work, there is nothing to do.
RV owners repairing or adding power points.
VEVOR Temporary Power Outlet Panel, RV Electrical Breaker Box with Prewired 30 Amp & 20 Amp GFCI Receptacle Circuit, Weatherproof RV Electrical Panel for RV Hookup Camper Travel Trailer Motorhome (ASIN B0DN678BTX). Amazon's page has the current price, specs and reviews.
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Check current Amazon listing (ASIN B0DN678BTX).
Fine print: The Dude has not personally tested this product. The details on this page come from the Amazon listing and can change; check the listing for the current specs, price and availability.