Home Furniture & Seating Seating, Tables & Pedestals Seat Hardware Short Mainstay Adjustable Height Package with Swivel – 2-3/8″ (Adjustable Height: 12″ to 15-1/2″) Springfield Marine Short Mainstay Adjustable Height Package with Swivel – 2-3/8″ (Adjustable Height: 12″ to 15-1/2″) $373.59 Short Mainstay Adjustable Height Package with Swivel – 2-3/8" (Adjustable Height: 12" to 15-1/2") quantity Add to cart Product Details Product Details Adjustable Height: 12″ to 15-1/2″ Anodized aluminum post. Diameter 2-3/8″. 9″ round anodized base. Air-powered height adjustment. 500 Newton cylinder. Locking Trac-LockT swivel. Display package. ABYC Class: (AD) H-31 Driver.
