Markar EGT308 Edge Guards The integral overlapping astragal of the Markar EGT308 Edge Guard provides additional security by protecting the latch protector. It is ideal for exterior pairs of doors or doors that require added protection from vandalism. Downloads Catalog Page (.) EGT308 Installation Instructions (.pdf) Close Interested in this product? Contact us to order Related products Markar EG308 Edge GuardsFIre-labeled adjustable edge guard. Markar EGC308 Edge Guards Fire-rated single return edge guard.