Vertical Extension (Pony Subs)

When you need to add height to your existing substructure, count on support from a vertical extension (pony sub) by Lee C. Moore. Our extensions are designed to meet your specific requirements for height and width and will interface with any make and model of substructure.

Features and benefits
  • Provides additional height for larger BOP stacks
  • Alignment guides ensure exact fit with existing sub box
  • Tow bars at both ends allow for easy transport
  • Removable inner box cross beams allow easy installation of walking packages
  • Tie-down links
  • Sub-spreaders
  • Monogrammed per API specification 4F

Learn more
Quotes are available on request. Contact us and let us know the make and model of your substructure as well as the overall width and height of the vertical extension.

More information is also available in our online brochure.