Fleetguard AF25425 Inner Air Filter Models Agrostar 4.61, Agrostar 4.71, Agrostar 6.11, Agrostar 6.21, Agrostar 6.31, Agrostar 6.61, DX3.60, DX3.90, DX4.10, DX4.30, Dx4.31, DX4.50, DX4.51, DX4.61, DX4.70, DX4.71, DX6.10, DX6.30