Prime-Line Make-2-Fit 3/4 x 3/8 x 72 Mill Aluminum Screen Frame

3/4" W. x 3/8" thick, .020 gauge. Screen retainer spline not included with aluminum screen frame, must order separately. Recommended screen spline size for use with aluminum screen .165 (11/64" diameter) and fiberglass screen .185 (3/16" diameter).