محول من 4" إلى 2-1/2" من Infinity Tools

The tapered design really makes a difference—no more fighting with mismatched connections. I had it set up in seconds and the airflow feels noticeably smoother through my shop vac setup.

I was dreading the usual tape-and-clamp mess when stepping down from my big hose, but this reducer slipped on snug and the taper kept the airflow steady with zero whistling. Solid enough that I don't worry about it cracking under shop dust.

The tapered design made connecting my 4" hose to the 2-1/2" port a breeze, and I noticed a real improvement in airflow compared to my old straight adapter. It's snug enough that I don't need a clamp.