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Features
This 2 kg (4.5lb) counterweight is designed for following iOptron mount:
- SkyGuider Pro
 - iOptron iEQ30 Pro
 - iEQ30
 - CEM25/CEM25EC
 - CEM26
 - GEM28
 - CEM40/CEM40EC (Pre-2021 models. 2021 model uses a wider counterweight shaft)
 - ZEQ25
 - AZ Mount Pro
 - MiniTower Pro
 - MiniTower II
 - MiniTower
 
It can be used for other mount with a 20mm diameter counterweight shaft.
Specifications
| Weight: | 2 kg (4.5 lbs.) | 
| Outer diameter: | 118 mm (4.6 in.) | 
| Inner diameter: | 20.5 mm (0.8 in.) | 
| Height: | 25 mm (1 in.) | 
| Locking mechanism | Locking screw with pin | 
| Locking screw thread size | M8 | 
Actual dimension, except inner diameter, may be different.
            