Copyright © 2025 National Products Inc. Seattle, Washington. All rights reserved.
RAM Mounts USA LLC - 8410 Dallas Avenue South, Seattle, WA 98108, USA
RAM® Triple Ball Adapter - B Size
ball size:
B Size (1")
weight capacity:
Standard Use: 2 lbs
Heavy-Duty Use: 1 lb
materials:
Marine-grade aluminum
packaging type:
Poly Bag
Weight:
0.2 lb
Return Policy:
All products purchased from RAM® can be returned within 30 days with no restocking fee (return shipping not provided). See full return policy here.
QUESTIONS & ANSWERS
Have a Question?
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What is the diameter of the hole in the RAM-B-289U?
The inside diameter of the center hole is .48" and the outter diameter is .95".
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What size is the hole and how deep? Is it or can it be threaded?
The center barrel portion of the RAM-B-289U is 1.18" tall and does not come threaded.
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Will this work on top of the Tele-Pole?
The RAM-B-289U is not compatible with the swing arm at the end of the tele pole but the RAM-289U has larger, 1.5" diameter balls which are would work well with the tele pole & swing arm assembly.





