Aqua Creek F-AACA Ranger 2 Adjustable Height Seat. The adjustable height seat is standard on our Admiral Lifts but is made available as an option for the Ranger 2. The adjustable height seat allows the user to accommodate taller wheelchairs and can move the seat from 18-inches at deck level to 24-inches in 2-inch increments. NOTE: Raising the height of the chair at deck level has a direct 1 to 1 relation to how deep the lift can extend into the water. For example, if you raise the seat 2-inches at deck level, it now goes 2-inches LESS into the water.