Union Retro V Overhead door closer - Silver cover plate and silver arm. Suitable for both internal and external doors between 750mm - 1100mm or 20-80kg Max weight. Dual handed for either push or pull operation. 120 minute fire rating. Power size 3-4. Adjustable power by spring, meaning the closer can remain fitted whilst adjustments are made. Closing and latch speed adjustments. 10 year guarantee. Medium duty fire rated door closer.