"I've just installed seven of these in various sizes. All rattled when first unpacked, and where found to contain large amounts of metal swarf when hosed out - seriously large amounts. Not good for the life expectancy of the boiler if left in place. That said, they are gorgeous rads, easy to hang, and arrived well packaged. The big ones are a fair weight, so make sure your walls are strong enough to take the load. Mounting clips are a bit ugly (visible through the gaps) but that's me being fussy."