One of the garbage disposals stopped working so Mr. Troutbend got one of the stored ones from the garage attic. It's a puny little 1/3 horsepower thing, not just small horsepower, the size is small, and it "Hushmaster" stencilled on the side of it.
So he's working along and hits a snag so we started looking for the owner's manual online. Come to find out the Hushmaster brand was sold by Sears and manufactured by Thermador: back when Thermador made garbage disposals. Now the parts are unavailable (good thing we have all we need) and apparently the manual is also unavailable online.
He figured it out eventually, and then it took a long time to reconfigure the under sink plumbing to match the Hushmaster. Now the Brown Palace once again has a working garbage disposal.
Are you wondering if it's quieter? Is it hushed? No. I would say it's on the loud side.