[Applicable Buick Models] This cabin air filter is compatible with BUICK: 2018-2020 Enclave, 2020-20025 Encore GX, 2016-2025 Envision5, 2017-2019 LaCrosse, 2017 Regal, 2018-2020 Regal Sportback, 2018-2020 Regal TourX.