- Milbank® meter sockets have set the standard for quality since 1927. With a 99.97% quality performance, thousands of active products to meet your utility's requirements and tens of millions of sockets installed across the globe, our products help keep energy at work and with 22 stocking locations across the US and our OneSERT program to help serve your needs in emergency situations our meter sockets are ready to go, wherever the job may be.