Awning/Casement Window Twin Chainwinder

The Doric DN400 Locking Twin Chainwinder is the ultimate in awning & casement window control when it comes to large & heavy sashes. Suitable for use in both residential & commercial applications, the twin winder is easy to operate on awning & casement windows.

Concept Windows was established in 2003 and is a family owned window and door manufacturer in Western Australia. Specialising in both residential and commercial projects, we have a reputation for reliable service, and the highest quality products.

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