【L5-30 Male Plug】NEMA L5-30P 30 Amp 125V Locking Dock Side 3 prong RV generator male Plug, 3 Prong Locking plug commonly found on RV, generator and marine shore power. 【Household T-blade Outlet】NEMA 5-15R / NEMA 5-20R, 15 Amp / 20 Amp, 3 prong regular household T-blade female connector.
eBay