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The PRIME LINE PRODUCTS P 7948 is a black vinyl screen spline designed to secure window and door screening material into aluminum and fiberglass screen frames. Measuring 0.185 inches in diameter (3/16 inch nominal), this round hollow-core spline features a serrated exterior profile that grips the frame channel for a secure, rattle-free hold. Each roll contains 1,140 feet of spline weighing 15 pounds, making it well suited for large-volume jobs or regular shop stock. It is installed by glaziers, window and door technicians, and general contractors performing screen repair or replacement work.
This spline is appropriate for residential and light commercial screen installations where aluminum or fiberglass screening is being set into standard extruded aluminum frame channels. The 1,140-foot roll length reduces mid-job splicing on multi-window projects such as apartment turnovers, new construction screen installation, or shop fabrication of replacement screen panels. The 0.185-inch diameter fits frame channels sized for 3/16-inch spline, which is among the most common sizes found in residential aluminum screen frames.
Designed for use with aluminum and fiberglass screening installed in aluminum screen frames that accept 0.185-inch (3/16-inch) diameter spline.
Screen spline installation requires a spline roller tool to seat the spline evenly into the frame channel without stretching the screen material. Excess spline should be trimmed flush with a utility knife after installation. Verify the frame channel groove width matches the 0.185-inch spline diameter before installation to ensure proper retention. No special licensing is required, but this task is commonly performed by window and door technicians or contractors experienced in screen fabrication.
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