Screen-Tight 3-1/2 In. W. x 8 Ft. L. Gray Vinyl Cap Component

The external cap (C) snaps into the base component and evenly tightens the screen, completing the installation. When rescreening, the cap temporarily pops off, allowing a quick and efficient replacement. Made of UV-resistant window grade vinyl. Never needs painting. 8 Ft. lengths. All 1-1/2 In. wide caps. Base attaches to a 2x4 or 4x4 wooden frame. Screen spline rolls into the spline groove. Cap snaps onto base. Screen-Tight recommends fiberglass screen (including sunscreen).