6 mm (1/4") thick 24" (610mm) x 24" (610mm) Georgian Polish Wire glass for the IE1B type hose cabinets. The GPW glass is a double pane glass with a Georgian Polish Wire in the middle that holds most of the glass if broken. The GPW glass is a stronger pane of glass then the standard glass and will withstand a greater impact. The glass is used primarily in complexes where risk for breakage may occur.