Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: what size hose connection?
Document: :)  Oh, and the opening where you connect your vent hose is 5 1/2". Not exactly an easy size to find so that's why we used a 6" reducer and used flex tape. It worked perfectly!
I figured that we reduced the fan down to the 4" too soon. Instead of putting the reducer right at the output of the fan, we bought a 6" hose and used the reducer (same 6" to 4") right before going to the outside laundry vent. HUGE difference!!!!!!! The fan was so quiet, and the output from the outside vent was awesome.As for the measurements from the other review, they are correct. I now understand what he was talking about.
(I hate having to run back and forth to the store for parts) So anyway, we wanted to reduce it to a 4" out the side wall with a laundry vent. We bought the reducer, a 6" down to 4", a 10 ft. - 4" hose, the laundry vent, some flex tape, and then connected it all. Well, we turned on the fan and it was so noisy, also the output from the outside of the house didn't nearly seem like enough. I kept wondering what we did wrong :(  Well, I ended up back at home depot.
Exhaust and the electrical box are in the way for a full circle 2x4 frame. 2nd irritation is the location of the electrical box...again - for the attic it would be more convenient , if the box would be higher up and easier to reach. One comment about the noise...it does sound like mechanical noise on top of the wind noise...that is a little disappointing..Update 3 weeks after InstallationI think the noise is mostly wind noise and not any mechanical noise. It sucks the air out very well..it is a smaller/mid size bathroom and the door is harder to open and you can feel the air flowing under the door.
Put that in the master bathroom. It is by far not as quiet as the smaller whisper fit units etc...however it is ok when taking a shower and moves plenty of air. I would give it 4 stars after installation. I gave it 3 stars for the amount of effort needed to install it. First of all with the size it can only be used for attic etc...also ..you will need to build a frame with 2x4s to mount it. There are just a couple of things that dont make sense for a primarily attic installation..for example why cant it be screwed on top of the drywall instead on top of the 2x4s ( would make it easier ).
nice fan but not quiet by any chance; it is loud but gets the work done; nice addition to my bathroom
needed to improve air circulation in the master bathroom to avoid excessive moisture hanging around. had this fan for 18months and it really makes a difference and its more quiet than the builder grade that it replaced.
installed fan in 2004 very quite and works well. installed the same fan in 2013 , fan blade is plastic now, not metal like the old one. results very loud.
i installed this in my kitchen with a dimmer switch. quietist fan i ever used. i reccommend this. just right
have it hooked up, but, while the bathroom remodel is still in progress, we can't evakuate it completely. However, it is so super quiet - and we know it is really efficient. More than happy with it to date
Answer: yes