One solid service line from point-to-point with above ground terminations;A simple clean cut is all that is required;Bi-Directional seal assembly can't be installed improperly where some competitors multiple internal components must have proper order and orientation to function properly;All X-Risers incorporate the "bottoming” or "positive stop” design. Simply tighten the compression nut until it is metal-to-metal and you are done;Simple design can be installed with one flat jaw wrench extending the life of protective coatings commonly flawed or removed by pipe wrenches;Integral barbed stiffeners are permanent (not loose) for additional pull out resistance;Chicago Fittings products are CNC machined from solid bar stock (not castings) providing high quality product with the most precise threads and design flexibility