Compatible with AC indoor units: - Hitachi RAK-18QH8(W) - Hitachi RAK-25QH8(W) - Hitachi RAK-35QH8(W) - Hitachi RAK-50QH8(W) - Hitachi RAK-18QH8(B) - Hitachi RAK-25QH8(B) - Hitachi RAK-35QH8(B) - Hitachi RAK-50QH8(B) Compatible with AC remote control: - Hitachi RAR-3U2