Reddit reviews POWERTEC 70147 Tapered Adapter, 4-Inch to 2-1/4-Inch

We found 2 Reddit comments about POWERTEC 70147 Tapered Adapter, 4-Inch to 2-1/4-Inch. Here are the top ones, ranked by their Reddit score.

Tapered ends for press-on fitIncreases air velocityTough, durable ABS plastic materialDurable construction stands up to hose-clamp pressureOutlet diameters: 4" and 2-1/4"

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2 Reddit comments about POWERTEC 70147 Tapered Adapter, 4-Inch to 2-1/4-Inch:

u/morgf · 6 pointsr/woodworking

Four inch fittings are usually made to fit inside a hose -- not to mate with other fittings. So use a short length of hose, or a Fernco plumbing flexible coupling sleeve, to connect them.

For shop-vac hoses, the fittings come in male and female. For example, you can get a F-F coupler (just a short length of plastic pipe) to connect two male 2.5-in fittings.

For reference, the shop-vac male 2.5 fittings have an outer-diameter (OD) of about 2.28-in but are usually slightly tapered. The female fittings have an ID of about 2.30-in.

I also find this coupler useful, which is male shop-vac on one side, and male 4-in hose on the other:

https://www.amazon.com/gp/product/B00M3J60O6

u/AHenWeigh · 1 pointr/woodworking

Also, instead of all that nonsense, you could just get the adapter that's literally made for that...

https://www.amazon.com/dp/B00M3J60O6/