The Briton 121 Series provides the traditional strength of the Briton range. Suitable for non-fire doors, the 121 is ideal where doors need to be self closing, for either fire protection or convenience, in low-maintenance traffic areas. Successfully tested to recommendations of EN1154 & EN1634. Supplied with fixings for regular and transom mounting only. Matching arm. Stand open arm are available as options. 10 year warranty. Cost effective door closer.