4S Semi-Suspension Slide & Swivel Base.

Add a slide, swivel and semi-suspension to your existing boat seat with this exceptionally low profile boat seat semi-suspension solution from Scandinavian Seat Suspension Systems (4S). The degree of suspension is achieved by adding, removing or relocating rubber dampers. No tools required. 

Featuring a slide with 120mm fore/aft adjustment and 360 degree 8-point locking swivel.

Manufactured from premium grade materials with electro black powder coating for protection from the harsh marine environment.

High quality marine-grade materials used throughout.

• Easy and quick to install.
• All settings are reached while sitting in the seat.
• Handles can be positioned on either side of the unit during installation.
• Powder-coated alloy frame.
• Meets ABYC H 31 standards for type AO.

Marine grade aluminium (6061T6 and 5052h32) is used for the main structural components. This alloy is designed for salt-water sensitive applications where good corrosion resistance is needed. The surface is electro powder-coated using AkzoNobel’s Interpon D2525 - a proven high-grade ‘coastal architectural’ product which is UV-resistant and suitable for use in a wide variety of conditions, environments and climates (from cold to hot, dry to humid).