Check the listing for details. TT-30P 30 Amp RV Generator Power Cord Inlet Box Outdoor Black 125 Volt 3-Prong. Condition: New. Listed at 36.97 USD. Journeyman-Pro Universal 125 volt 30 AMP 3prong Generator Inlet Box Easily connect your three or four prong extension cord from your RV power station or generator to your home electrical panel with interlock or directly to manual transfer switch. ✔ MAX POWER - NEMA TT-30P (Male Plug) - (30 Amps, 125 Volts) Generators Up to 3,750 Running Watts ✔ SAFETY - Twist Lock Collar Holds Cord Set To The Inlet, perfect for Shore or Marine Power cable ✔ EASY INSTALL - 4 Combo Electrical Knockout Connection: Combination 1/2” & ¾” (Left/Right/Back/Bottom) ✔ INDOOR/OUTDOOR - NEMA 3R Rain Tight for transfer switches/panels, interlock kits on breaker panels ✔ PRO'S CHOICE! - Safe with cETL us Approved Product, and Lifetime No-B.S. Warranty! ✔ WORKS PERFECTLY for use with supplying power from backup Genset, to your House/Marine/Boat or RV/Camper/Travel Trailer. SPECS: All Configurations share same dimensions: 4.13" x 6.10" x 4.13" PIB-TT30P - NEMA TT-30P 125V AC 30 Amp 3750 Watts ⭐⭐⭐⭐⭐ The only electrical products backed by a lifetime No-B.S. Guarantee!, The Professionals Choice! proven by Journeyman in the field, don't settle for anything else