the diameter is not for 1 1/2" as stated in the description the diameter is for 2" back to square one for me. This product may not be readily available at all times or in all locations, which could make it difficult to obtain when needed!
Pros
Fully machined with real wrench flats to tighten it up. Works well.
Cons
This product may not be readily available at all times or in all locations, which could make it difficult to obtain when needed