Product Description

235-3 Standard Adapter (Hollow Adapter)

Fits a variety of instruments

The 235-3 fits into the intermediate tube of any Brunson heavy duty stand or pedestal column stand, and provides a standard 3½”-8 instrument thread mount on top. We call it “hollow” because there is no center – you can see through it. This allows vertical sightings with any instrument capable of doing so.

Be sure to have a look at all of our instrument adapters for 3D or alignment instruments.


Effective height:
0.975″ (24.8 mm) – this is the vertical distance between the lower interface surface (not the very bottom of the unit) and the bottom of an instrument which is mounted on top of the unit
Material: Stainless steel
Upper external thread: 3½”-8
Lower external thread:
2.825″-20, fits into Brunson stand intermediate tubes
Approx. weight: 3 lbs. (1.4 kg)