If you want a long warranty Mitchell and brown do them although it seems only up to 43" https://www.mitchellandbrown.co.uk/product/mitchell-and-brown-jb-43fs1811/
If you want a long warranty Mitchell and brown do them although it seems only up to 43" https://www.mitchellandbrown.co.uk/product/mitchell-and-brown-jb-43fs1811/