Marinco 128A RV Generator Adapter, 20 Amp Locking, 4 Prong Use to connect standard 30A RV cordset to generator equipped with 20A locking receptacle. One-piece unbreakable housing. Weather resistant construction. Female 30A125V. Male 20A125V locking. California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Electrical Supplies Product MPN 128A Product UPC 093344311628 Fast Ship In Stock Ships Today Deals Clearance custom-sash CLEARANCEE72B2BF