The Silver Line 420 is our best selling Silver Line RIB and it's easy to see why; performing effortlessly in both challenging conditions and calm summer waters, its deep-V hull ensures a stable, smooth ride, making it just as capable in rough weather as it is for leisurely coastal cruising with family and friends.
Built with Grand’s signature craftsmanship and uncompromising quality, the S420 is a stripped-back, no-nonsense boat, offering exceptional practicality without sacrificing reliability.
Its lightweight and compact design allows it to be easily used on most tender pontoons, making it an excellent choice for both first-time boaters as a stepping stone into boating as well as experienced owners looking for a high-quality, versatile RIB tender for their bigger seacraft.

Getting On The Water, Made Easy.
Perfect choice for beginners, the S420 offers a simple, user-friendly design that makes handling and navigation effortless with its lightweight build and stable hull providing a smooth, predictable ride. It can be easily launched, stored and towed too, making the barrier to entry even lower for those keen on getting on the water.