Array
(
    [0] => Array
        (
            [filterveld] => merk
            [filterkey] => 490
        )

    [1] => Array
        (
            [filterveld] => model
            [filterkey] => 13
        )

    [2] => Array
        (
            [filterveld] => kleur
            [filterkey] => 3
        )

    [3] => Array
        (
            [filterveld] => sale
            [filterkey] => 1
        )

)