EMMA SALES LLC is the producer and patent holder of the Boxlok product line. The Boxlok is classified as a Valve Box Alignment Device. EMMA SALES manufactures the Boxlok in the USA. The Boxlok stops the valve box from intruding on the operating nut of the valve during the backfill process. After 20 years in business EMMA SALES has also added to stocked water industry products, by adding the VKAD Curb Stop Alignment Device, Mud and Frost Plugs for keeping the Valve box clean and more.