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Building an 8" pier for smaller telescopes
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Products & Solutions for ...
12" Concrete Piers
Large GEM Mounts
12" Pier Top Plate Combo for Large GEM Mounts
      * Requires Losmandy MA adapter
    ** Requires AP ADATRI Tripod Adapter
  *** Requires AP 900FSA or 119 FSA Adapter
**** Requires AP 1200FSA or 1612FSA Adapter
>>
Related Products
3/4" x 12" L-Style Stainless Steel Anchor Bolt Kit
8" Pier Top Plate Combo for GEM Mounts
12" Pier Top Plate Combo for GEM Mounts
Additional Images
This kit combines our standard 12" pier top plate with our 10" adapter for Large GEM (German Equatorial) mounts. The Large GEM adapter mounts to the 12" plate with shoulder bolts from underneath. The Large GEM  adapter supports multiple mounts (see compatibility list below). The 10" Large GEM Adapter kit may also be purchased separately.

This combination may also be purchased with our 3/4" stainless steel anchor bolt kit.
Compatibility:
Includes:
Installation Diagram
  ) Losmandy GM-8/G-11 Mounts *
  ) Astro-Physics Mach-1 Mount **
  ) Astro-Physics AP-900/1100 Mount ***
  ) Astro-Physics AP-1200/1600 Mount ****
  ) Takahashi NJP Mount
  ) 12" Diameter 1-1/2" Thick Pier Top Plate
  ) Unthreaded Center Insert
  ) 10" Diameter Large AP-GEM Adapter
  ) Stainless Steel Shoulder Bolts
  ) Stainless Steel Center Bolt
International and Custom Orders
Send eMail for shipping charges outside the USA
Ordering Information Amount USA Shipping Lead Time
12" Pier Top Plate + 10" AP-GEM Adapter $515.00 $45.00 35 Days
12" Pier Top Plate + 10" AP-GEM Adapter +
3/4" Anchor Bolt Kit

$588.00 $62.00 35 Days
10" AP-GEM Adapter Kit $162.00 $17.00 35 Days