Array
(
    [0] => Array
        (
            [filterveld] => merk
            [filterkey] => 6
        )

    [1] => Array
        (
            [filterveld] => model
            [filterkey] => 60
        )

    [2] => Array
        (
            [filterveld] => mouwlengte
            [filterkey] => 1050
        )

)