Wise Seats Adjustable Seat Pedestal & Mount 12"-18" 8WP21-18SThis Wise Adjustable Seat Pedestal can adjust from 12" to 18" in height. Features a thick walled, 2-7/8" polished aluminum post for maximum durability and longevity. Includes seat spider mount with adjustment knob and locking paddle handle.The standard 5-1/4" hole pattern fits virtually all marine seat brands. Adjusts from 12" to 18"; 2-7/8" Polished anodized aluminum post; 9" Diameter base with recessed mounting holes; 360 Degree rotation with locking knob; Class AD certified per ABYC standard; 3 Year warranty; About Wise Boat SeatsWise Seats has been a long-standing supplier of replacement and OEM boat seats. They have rightfully earned their renown for high quality boat seats. From pleasure to bass boats, and even pontoons, Wise has the OEM quality replacement boat seats for you.Discover top-quality boat seats at Wholesale Marine! Shop our extensive selection for comfort and style on the water. Perfect for every boating adventure! Our in stock boat seats are able to get anywhere in the country in a matter of daysShop our full Wise Boat Seat selection