This AC WORKS brand piggy‑back adapter [PBTT30520] is a 1‑foot, heavy‑duty RV splitter designed to expand the functionality of a standard NEMA TT‑30 outlet. It features a NEMA TT‑30P 30 Amp, 125 Volt RV plug with a matching TT‑30R piggy‑back connector on the backside, allowing you to maintain your primary RV connection. A second female end provides a NEMA 5‑15/20R 15/20 Amp household outlet, enabling you to run additional appliances as long as the combined load does not exceed 30 Amps. The cord is built with STW 10/3, 30 Amp, 600 Volt anti‑cold‑weather cable that stays flexible in harsh temperatures. This adapter is super durable and commonly used for residential applications, generators, RVs, and campgrounds. Backed by a 5‑year limited warranty.