The Vision Series includes the following styles: Sash, Slider, and Casement & Awning. These windows are available in 3 groups. Vision is the standard, residential version with 3mm glass with or without muntins. Vision Plus is the upgraded version with 6.38mm laminated glass. This upgrade meets NAFS specifications for wind loading and water penetration performance. The Vision Impact is the highest standard to meet Florida Building Code Wind Zone 3 Specifications with 8.28mm laminated or 21mm laminated and insulated.