Fast, one-step connection. 2 1/4in. inside diameter accepts conduit of different sizes. Made of impact and corrosion-resistant PVC, suitable for wet locations. No unsightly junction boxes or time-taking assembly, just a trouble-free installation. Designed for line voltage (12-Volt) landscape lighting. Eliminates need for above or below ground boxes. Built-in stabilizer removes need for concrete. Accepts 1/2 NPSM thread. UL and cUL listed.