Screen Tight 1-1/2 in. x 8 ft. White Vinyl Cap Component is designed to evenly tighten screens and complete your installation with ease. This 1-1/2" by 8-foot white vinyl cap component from Screen Tight features a convenient design where the cap temporarily pops off, making rescreening quick and simple. Made from UV-resistant window grade vinyl, it requires painting, ensuring long-lasting durability. The cap snaps securely onto the base, which easily attaches to 2x4 or 4x4 wooden frames, while the screen spline rolls smoothly into the spline groove. This component is for use with fiberglass screens, including sunscreen varieties. Model Number: WCAP18