dormakba BTS75V Foundation Box

Spare or replacement foundation box (cement box) for the dormakaba BTS 75 V floor spring. The foundation box is the steel casing set into the floor recess that houses the floor spring mechanism. Order when the original box is damaged during installation or when a replacement is needed for a renovation project.

Genuine dormakaba spare part. Same-day despatch on orders placed before 2pm. Free delivery on orders over £100.