Now, semisubs are the most stable of any floating rig, many times chosen for harsh ... drilling equipment and other machinery supported by pontoon-type columns that are submerged into the water.

620FS Cup includes: Deluxe Boat Cover Raised, Trim Switch Lever Control (2), Rear Handrails 56in, Lithium Battery w/Holder (3) Mercury® 9.9ELPT ProKicker and Mercury Kicker Rig Kit. 621FS Pro includes ...