The Truck-Lite 2.25" x 5.2" Bottom Access Surface Mount Adapter Box is the perfect solution for your wiring needs. This adapter box features molded and threaded brass inserts for receptacle mounting, bottom entry for standard wiring with strain relief mechanism and is available with back access hole to accommodate rear entry applications. The box is made of durable gray NEMA 4X material, making it perfect for outdoor applications. With its easy installation and reliable performance, this adapter box is the perfect choice for your wiring needs. FleetPride is your First Click in Heavy Duty®.