Both the TOTAL70c and TOTAL70s belong to REHAU’s 70mm PVC-u window and door range and share the same high-performance features, including excellent thermal efficiency with multi-chamber profiles capable of achieving U-values as low as 0.8 W/m²K, compliance with leading security standards such as BS 7950 and PAS 24, suitability for both new build and refurbishment projects, and broad glazing options (4–44mm) compatible with French, casement, tilt-and-turn, bay, and bow window styles.