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![Springfield 2-7\/8" Heavy-Duty Adjustable Mainstay Package - 10"-12" [1250456-L]](https://cdn11.bigcommerce.com/s-efldq8kz10/images/stencil/1280x1280/products/23472/30832/110579XL__02422.1762218288.jpg?c=1 "Springfield 2-7\/8\" Heavy-Duty Adjustable Mainstay Package - 10\"-12\" [1250456-L]")
![Springfield 2-7\/8" Heavy-Duty Adjustable Mainstay Package - 10"-12" [1250456-L]](https://cdn11.bigcommerce.com/s-efldq8kz10/images/stencil/500x659/products/23472/30832/110579XL__02422.1762218288.jpg?c=1 "Springfield 2-7\/8\" Heavy-Duty Adjustable Mainstay Package - 10\"-12\" [1250456-L]")
2-7/8" Heavy-Duty Adjustable Mainstay Package - 10"-12"
Package includes 2-7/8″ high-strength rigid 4-keyed anodized aluminum air-powered height adjustment pedestal (500 newton cylinder) with 9″ round anodized base, and locking Trac-Lock™ swivel & slide. 3-1/2″ outer post with 2-7/8″ inner post.
![Springfield 2-7\/8" Heavy-Duty Adjustable Mainstay Package - 12"-14.5" [1250450-L]](https://cdn11.bigcommerce.com/s-efldq8kz10/images/stencil/500x659/products/23471/30831/110578XL__18885.1762218285.jpg?c=1 "Springfield 2-7\/8\" Heavy-Duty Adjustable Mainstay Package - 12\"-14.5\" [1250450-L]")
Springfield Marine
![Springfield 2-7\/8" Heavy-Duty Adjustable Mainstay Package w\/Tension Knob - 9" Base [1250456-LC]](https://cdn11.bigcommerce.com/s-efldq8kz10/images/stencil/500x659/products/23473/30833/110580XL__26153.1762218290.jpg?c=1 "Springfield 2-7\/8\" Heavy-Duty Adjustable Mainstay Package w\/Tension Knob - 9\" Base [1250456-LC]")
Springfield Marine
![Springfield 2-7\/8" Heavy-Duty Adjustable Mainstay Package w\/Slide [1250301]](https://cdn11.bigcommerce.com/s-efldq8kz10/images/stencil/500x659/products/23470/30830/110577XL__63787.1762218283.jpg?c=1 "Springfield 2-7\/8\" Heavy-Duty Adjustable Mainstay Package w\/Slide [1250301]")
Springfield Marine
![Springfield 2-7\/8" Heavy Duty Mainstay w\/Swivel [1250300]](https://cdn11.bigcommerce.com/s-efldq8kz10/images/stencil/500x659/products/17560/22186/99070XL__32684.1755232395.jpg?c=1 "Springfield 2-7\/8\" Heavy Duty Mainstay w\/Swivel [1250300]")
![Springfield 2-3\/8" Adjustable Locking Short Mainstay Package [1250250-L1]](https://cdn11.bigcommerce.com/s-efldq8kz10/images/stencil/500x659/products/23513/30890/111100XL__51617.1762380825.jpg?c=1 "Springfield 2-3\/8\" Adjustable Locking Short Mainstay Package [1250250-L1]")
Springfield Marine