500 Pa Water Penetration.
Heavy duty double rollers.
Single Glaze up to 12.76mm
Smooth operation & durability.
No unfinished or exposed edges.
Great aesthetics clean with ease.
Hollow sections = Added strength.
Better energy efficiency & acoustic results.
No internal projection of transom or sash sections.
High quality sealing system = Low air infiltration rates.
Available in frame width of 75mm.