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The PRIME LINE PRODUCTS P 7520 is a round, hollow-core screen spline designed to secure window and door screening material into aluminum and fiberglass screen frames. Made from top-quality vinyl, this spline measures 0.155 inches in diameter (5/32 inches) and comes in a 25-foot length per roll. The serrated exterior profile bites into the frame channel to hold screening taut and resist pull-out. It is installed by screen fabricators, glaziers, and window and door service technicians during screen replacement or new screen assembly.
This spline is suited for residential and light commercial screen frame applications where aluminum or fiberglass screening material is used. It fits standard spline channels sized for 0.155-inch diameter round spline. The black color blends with dark-framed screen assemblies and is commonly used in both new construction screen builds and field repair work. Each unit contains 10 rolls of 25 feet each for a total of 250 feet per package.
Designed as a standard replacement spline for aluminum and fiberglass screen frames that accept a 0.155-inch (5/32-inch) round hollow-core spline channel.
Screen spline is installed using a spline roller tool to press the spline and screen material into the frame channel. Ensure the frame channel is clean and free of debris before installation to achieve a proper seat. Avoid overstretching the screen material during installation, as this can distort the frame. Excess spline should be trimmed flush with a utility knife after seating.
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