A range of well proven and superior clear view screens of the highest quality. Unlike other similar screens it is not necessary to cut a large center hole for the fixing. These are fitted directly into the window glass by a series of fixing bolts for which a drilling template is provided. Made of high quality, corrosion free materials. Gas tight and non-gas tight models available. Unless specified when ordering, the non-gas tight type will be supplied as standard. Suitable for glass thickness from 6 mm - 19 mm. Also specify power source voltage when ordering.