I was hesitant to order this product because of all the negative reviews regarding installation. I went ahead and purchased it for the manufacturing quality that was described. I am glad I did. I replaced my bathroom exhaust fan with a larger CFM model and used this 4 hose to connect it to the fan and the existing roof vent. Each end went on very easy and secured with the provided clamps. I also used HVAC tape to add security to it from falling off, mainly the roof vent end. If you straighten each end and work it with your fingers to make it as round and as large as possible, it slips right on. I twisted it a little when installing it and it went on in no time at all, and this was done in the attic with truss construction which is not easy to access. Hope this helps.
Rating:
[5 of 5 Stars!]