Sleipner Overview All / Tunnels and Flanges / Mould Flanges All Thruster Packages AC Thrusters DC Thrusters Hydraulic Thrusters Electrical Components Spares Tunnels and Flanges SX Extension Blocks Bow Thruster Tunnels Stern Tunnels Stern Thruster Cowls Mould Flanges Upgrade Kits SX extension Block from £129.83 Select Size 10mm - SM148171 50mm - SM148170 Add To Cart Mould in frame for ø185mm £725.27 Add To Cart Mould in frame for ø250mm £1,126.71 Add To Cart Mould in frame for Ø300mm £1,785.29 Add To Cart