ADM Radius Blocks for Astro-Tech 8" RC Telescopes
ADM Radius Blocks for Astro-Tech & Orion 8" RC
These ADM Radius Blocks fit Astro-Tech, Orion, GSO, and TSO 8" f/9 RC Telescopes. Includes mounting hardware. Attaches via existing OTA mounting holes. Measures .75" long, 4" wide, 1" thick, and weighs 4 oz.