Part: AT10RC Fits: Astro-Tech, GSO, Orion (US), and TPO 10" f/8 RCT secondary

Article number: AT12RC
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Delivery time: Ships in 2-3 Days from our Warehouse

Knobs for Astro-Tech (GSO/Orion/TPO) 12" f/8 Ritchey-Crétien Secondary


Part: AT12RC
Fits: Astro-Tech, GSO, Orion (US), and TPO 12" f/8 RCT secondary

Knobs: Black plastic, 16 mm (5/8”) diameter
Threads: Stainless steel

Notes:

  1. The factory dust cover will fit normally with Bob’s Knobs installed.
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