TT Stop Seal is designed to take five inserts to solve most sealing problems likely to arise. TT is easy to fit & adjust, because our method of securing by screws in over size holes provides a slight amount of movement when fixing. TT can be used with any of the Sealmaster threshold seals in this catalogue. The choice of insert depends upon the type of door involved. Sealmaster TTJ Stop Seal Length 2100mm Satin Anodised Aluminium