Review on 🔧 Woodstock W1037 Reducer: Efficient 5-Inch to 4-Inch Transition for Seamless Woodworking by Donald Phillips

Another reviewer had an issue with Revain Bundle: not suitable for my Super Dust Vice. I wouldn't bother with a negative review and would just write it off as two female connectors (where the inside measurement is 5 inches) and you only need a short length of 5 inch pipe to function as a coupler. However, there are small support ribs inside the 5" diameter end that would make it impossible to use the 5" pipe as a coupler and even if you could the ribs would create a gap between the pipe and the adapter. I was looking to buy a 5" flexible coupler that uses hose clamps for sealing, but luckily I checked the websites first: no one sells a 5" coupler locally that would fit here.