Murray brand residential meter sockets are made from type G90 hot-dipped galvanized carbon steel, which provides the best available corrosion protection for commercial applications. A powder coating of polyester paint using an electrostatic process further enhances corrosion protection, and gives a finish, free from drips or runs. Meter sockets have a stainless steel latch and hasp feature. Knockouts are constantly tested in the manufacturing process. For installation near salt water, high-grade aluminum enclosures (painted or unpainted) which resist corrosion are available.
Inside the socket is an extremely strong and durable insulating block which resists breaking during installation.