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- Bob's Knobs for Celestron C9.25 f/10 Secondary with Trifid Fastar Housing # C9.25fstOur Price: $23.95Out of StockFree US Shipping Over $25
- Bob's Knobs for Celestron C8 f/10 Secondary with EdgeHD Optics # C8edgBOOur Price: $22.95In StockFree US Shipping Over $25
- Bob's Knobs for Celestron C8 f/10 Secondary with Metric Collimation Screw Threads (not for E...Our Price: $22.95In StockFree US Shipping Over $25
- GSO 2" Linear Bearing Crayford Focuser for Refractors - Dual Speed (with 86.4mm Flange)Our Price: $190.00In StockFree US Shipping
- GSO Focuser Collimation Ring / Tilt Adapter - For 6" and 8" CC / RC Telescopes with M90x1 Fo...Our Price: $84.95Out of StockFree US Shipping
- GSO 8" f/4 Parabolic Primary and 70mm Secondary Telescope Mirror SetOur Price: $430.00Out of StockFree US Shipping
- GSO 12" f/5 Parabolic Primary and 70mm Secondary Telescope Mirror SetOur Price: $640.00Out of StockFree US Shipping
- Bob's Knobs for Meade 10" f/10 with 3-Screw Secondary # M10-3Our Price: $21.95In StockFree US Shipping Over $25
- GSO Telescope Tube Mounting Rings (Set of 2) - 230mm (9.06")Our Price: $85.00Out of StockFree US Shipping
- GSO 2" Crayford Focuser for Refractors - Dual Speed (with 112.5mm Telescope Adapter)Our Price: $190.00In StockFree US Shipping
- Bob's Knobs for Orion Astrograph 4-Vane Phillips Screw Secondary Knobs # CNsec35Our Price: $22.95Out of StockFree US Shipping Over $25
- Bob's Knobs for Meade 8" f/10 with 3-Screw Secondary # M8-3Our Price: $18.95Out of StockFree US Shipping Over $25