Sparta Engineering carries a line of BOP testing stumps. Engineered and tested to 5000psi. The specifications are as follows:

Pressure Tested BOP Test Stump
Style Bolt On
Pressure tested to 7500psi
Pressure testing report digital
Connections Threaded
Flange In house
Height 17.75in
Weight 400lbs
Style Thread together
Engineered BOP Test Stump
Style Bolt on
Flange API6A 7-11/16″
Inspection Radiography
Pressure tested to 7500psi
Engineering Certification Included w/ serial number
Connections welded
Height 15″
Weight 400lbs
Welding complete to ASME B31.3