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The Cal-Royal CON77 Medium Duty Concealed Overhead Stop Holder is a versatile and durable door control solution designed for moderate traffic and medium-weight doors. Featuring a concealed slide track design, this overhead stop holder offers a clean aesthetic while delivering reliable performance for both interior and exterior, single or double-acting doors. Its heavy-duty shock absorber spring compresses 5–7° before reaching the dead stop, ensuring smooth operation and enhanced door protection. The CON77 is non-handed, UL Listed for up to 3 hours (stop function only), and compliant with ANSI A156.8 standards. With a fully adjustable opening angle up to 110°, a durable slider cam, and a complete installation kit, the CON77 is ideal for commercial and institutional applications requiring a sleek, concealed overhead stop solution.