2-3/8" Adjustable Mainstay Package with Locking Swivel. Package includes 2-3/8" high-strength anodized aluminum air-powered height adjustment pedestal (500 newton cylinder) with 9" round anodized base, and locking Trac-Lock swivel. Adjusts: 14" to 20". Seat Mount: 3100031-LAR1. Springfield's air-powered adjustable post is made with a rust-resistant anodized finish for marine longevity. Designed with a 2-3/8" post and 9" round base. Available with locking or non-locking Trac-Lock swivel or slide and swivel. Includes a 5 year warranty from the manufacturer. Designed for quick and simple installation.
- Includes a 5 year warranty from the manufacturer
- Designed for quick and simple installation
- Includes locking Trac-Lock swivel (slide not included)
- Air-powered height adjustment from 14" to 20"
- 2-3/8" post with 9" round base (anodized finish)