Channel-Balance FS100 Top Guide, 9/16 × 1-1/4 × 1/2 in

Printable nylon-style top guide for 1/2–5/8 in window channel balances (FS100 / non-winged profile). Envelope 14.3 × 31.8 × 12.7 mm with an open-up U-channel pocket and two rivet holes (22 mm spacing). **Verified against published specs:** Outside envelope matches Prime-Line / CRL FS100 top guide (9/16 × 1-1/4 × 1/2 in) sold in H3929 / H3930 / FS290B kits. **Estimated / please check:** Pocket width (10.5 mm) / depth (8 mm) and rivet spacing are my design for a typical 1/2 in U-channel. Compare…

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