Briton 1110 Door Closer - Polished Stainless Steel Cover and Arm. Suitable for both Internal and External doors between 750-1100mm or 20-80kg Max Weight. Dual handed for either push or pull side fixing. 120 minute fire rating. Power size 2-4. Adjustable power by template. Closing and latch speed adjustments. 10 year guarantee. Medium duty fire rated door closer.