This durable resin lid has been designed to fit on a 90L round reservoir . Perfect for transforming the reservoir into a sump for a water feature of your choice, this lid has a maximum load of 4500kg so is perfect for supporting features which don't have an internal reservoir. The holes in the lid allows for the water to trickle back into the reservoir to be recycled back through the feature. Specifications Diameter: 62cm (24.4in) Max load: 450kg