Bobs Knobs Springs for GSO Newtonian Telescopes with 8", 10" & 12" Primary Mirrors

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About this product

Bobs Knobs Springs for GSO manufactured Newtonian/Dobsonian telescopes with  8”, 10”, and 12” primary mirrors.

Some telescope owners find the factory-fitted primary mirror springs are a little too weak to maintain precise collimation in some circumstances. 

These Bobs Knobs stainless steel replacement springs are stronger, so provide more support. 

NOTE: We recommend your telescope's mirror locking screws remain in place for additional control. 

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