Astoria Pro Sliding Patio Doors Your neighbors will think you spent a fortune on these doors — let them! Designed for new construction, Astoria Pro Sliding Patio Doors are both attractive and affordable. These doors utilize multi-chambers of insulating air that keep heat and cold outside, while adding to the door’s overall strength. Astoria Pro Sliding Patio Doors are available in either full-glass or grided styles. The classic look of multiple panes is created with optional, internal, dust-free muntins. These grilles are inside the glass, so you never need to clean them. Frames and panels are easy to maintain and will never need painting. Discover the value of Astoria Pro Sliding patio Doors - designed to last, pleasing to the eye and energy-efficient. Available in standard widths with sidelites optional. FEATURES 3 1/4’ jamb has multi-cavity construction for added insulation and strength. Dust-free muntin (DFM) internal grille system. Panels and frames are fusion-welded at head sill. High impact, rigid, vinyl frames and sash are made with an unplasticized PVC powder blend. Units have full-length, uninterrupted, interlocking meeting rail. Polypropylene pile weatherstripping provides resistance to air, water and dust infiltration.