Camco 30M/30F AMP 12 in. 4-Prong Generator Adapter at Tractor Supply Co.
AC WORKS 25ft 8/4 SOOW Super-Duty NEMA L14-30 30A 125/250V Generator Rubber Extension Cord in the Extension Cords department at Lowes.com
Gen RV 30 Amp Generator Cord, 4-Prong 10 Gauge Heavy Duty L14-30 Generator Power Cord Up to 7,500W - Leisure RV Parts
4 Prong Generator Cord, Electrical Power Dogbone with Grip Handle – aoweitour
30A L14-30 4-prong Locking Plug Generator Extension Power Cord | 10 AW – Ceptics
Amazon.com: Miady NEMA L14-30P Generator Plug, 30 Amp 4-Prong Industrial Grade Locking Male Plug Up to 7,500W, Grounding Type/UL listed : Patio, Lawn & Garden
Amazon.com: RVGUARD 4 Prong 30 Amp 100 Foot Generator Extension Cord, NEMA L14-30P/L14-30R, 125/250V Up to 7500W 10 Gauge SJTW Generator Cord with Cord Organizer, ETL Listed : Automotive
Gen RV 30 Amp to 15 Amp Tri-Outlet 4-Prong Generator Power Cord, 10 Gauge Heavy Duty L14-30 to 3X 5-15R 125/250V 7500W - Leisure RV Parts
AC WORKS 1.5 ft. L14-30P Generator 4-Prong 30 Amp Plug to (4) NEMA 5-15/20R 20 Amp Household Female Connectors Adapter Cord L1430F520-018 - The Home Depot