The Trega Corp. locking well caps for submersible pump installations feature integral automotive-type cam locks that are keyed alike or random, with master keys available for randomly keyed locks. Well log data pads are cast inside the cap, and the company name is cast onto the top. The inner ring encloses the top of the casing to prevent pump leads fraying on top of the casing. Installation is intended to be simple with no holes to drill into the well casing — stainless steel set screws secure the inner ring to the casing. Trega Corp.