Security windows from Masonry & Glass Systems offer many advantages for a basement window installation. You receive the security and durability of a glass block window with the ventilation of a hopper style unit. You also have additional options including thermal dual and triple pane glass. The exolite double skinned acrylic product that comes standard in our security windows is nearly unbreakable and provides terrific security. The Security window is completely weatherstripped with Foam Tite and woodpile insulation. It comes with a flushmount fiberglass screen with an extruded aluminum frame. It is a completely welded vinyl frame that when it is mortared into place provides tremendous strength to resist forced entry. The Security window comes in three colors, White, Earthtone and Safari Brown.