3'' Length Straight Silicone 4-Ply Coupler Silicone Hose Black+Red Color with T-Bolt Clamp Inner Diameter (4"(102mm)

Needed a rubber or silicone coupler to use on my new furnace exhaust stack in order to reduce vibration transfer. This silicone coupler fit the bill. It is a high quality coupling that can withstand the exhaust heat. The two stainless clamps are heavy duty and well made. Great value.

Ok

It is a great value and good quality silicone coupler with t-bolt clamps included.

Is a 4" coupler but was almost impossible to fit over two intake ducts with an outside diameter of 4", I had to use assembly lube, a pick, and every ounce of strength I had to fit it over them. Once I was able to make it work the supplied clamps would not fit over the coupler. I ended up removing it and buying a different one

I didn't use it and returned it with no problems I would like to see all metric or all us measurements I needed 4"x4" or 120mmx120mm 4"x3" did not work for me

Not sure what I ordered this for, but I do have other couplers from the same brand that fit well and have held up to some serious abuse.

For what it is, at this price point, I couldn't be happier. The silicone feels nice and the clamps were much more robust and strong than the pictures would make you believe. We will see how it holds up over time with exposure to heat, etc. but it did it's job well.

Works