Concealed spiral balance sliding Sash Windows are a great alternative to the traditional weights & pulleys sash window.
They are easy to use and meet the same quality standards, but tend to be more cost effective and ideal for new builds.
Instead of the weights & pulleys system, these windows use spiral rod torsion and tension springs in a self-contained balance for Smooth and easy opening and closing.
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Patchett Joinery is consulted before specifying.
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| Finish(es) (?) | Paint | |
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| Uniclass (?) | Pr_30_59_98 Window units | |
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| Density (?) | 510 Kg/m3 | |