The dual thermal break decreases U-Factors and increases CRF over a single P&D pocket when using the same size and type of insulated glass. Azon’s Lancer® mechanical lock provides long-term resistance to shrinkage of the polyurethane barrier. The glass plane matches that of our 4-1/2″ system depth for a pleasing reveal on the exterior and interior sides of the frame. Seven anodized finishes and 19 standard paint color are available on this storefront framing system to complement any project with warranteed protection, as well as street appeal.