This is a Quark Combo body. It has the blocking filter but no etalon inside (it was damaged and thus removed). I figure someone can still use the body & blocking filter to add versatility to their standard Quark.
The bottom half of the unit with blocking filter can be used to convert a standard Quark to a Quark Combo (TS8 size Torx 5 sided pentalobe screw to remove) for more barlowing versatility.
The body is in like new condition. Blocking filter is mint.
Selling for $250 shipped anywhere in USA.
VENDORS WELCOME! Please, only solar equipment.
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