Smooth Silent Running Sashes: Are achieved by fitting a large diameter wheels and matching these wheels to the frame running rail.

Easy to Fit: The wheel carriage can be fitted and removed from a fully assembled sash. This will be of assistance when / if you ever have to replace the carriage.

Height Adjustable: The illustration shows how the wheel height can be adjusted. The wheel can be snapped out of carriage and replaced if necessary.

Ball Bearing Wheel: For extra heavy sashes we fit ball bearing wheels into the same carriage.