The Guardian range offers multiple door closer solutions that are reliable, robust and quick to install, on wooden and aluminium doors. The FS990 model is a hydraulic floor spring with fixed force (EN 5) for installation on wooden and aluminium doors, available in the standard version (it only closes the door) and in the hold-open version (in addition to closing the door, allows blocking at 90 °). All models are complying with the EN 1154 standard, available in silver finish and can be installed on right-hand or left-hand opening doors.