Weight capability: Always replace with a like for like size or greater (length of track). For specific weights please see the table below:
Track length (inch/mm): 12"/311mm
Orientation: Top Hung (Hinges at Sides)
Max Weight (kg): 21
Material: Ferritic stainless steel grade 430.
Testing: Tested to an operational performance of 30 000 cycles of opening and closing (open your windows twice a day every day for 40 years!). Conforms to BS6375 Part 2 1987 for performance.