Adapter, 3.5″ Hedrick Focuser to 2.7″ AP Threads
$173.00
Description Adapter, 3.5" Hedrick Focuser to 2.7" AP Threads (only for CDK17 and CDK20): This adapter bolts onto the back of the Hedrick 3.5" Focuser and provides female Astrophysics threads for use with AP accessories.
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$150
$173
(+$23)