Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Want to replace the Devonshire, can I use the valve or do I have to replace everything?
Document: I bought the Kohler K-T396-4 in January mostly because I liked the Devonshire series design and color. My bathroom was finally ready to use this week. I was/am disappointed by the flow from this shower head. There's nothing in the install guide about increasing the flow so I called the Kohler support site to ask if there was a flow restriction ring I could remove. They said no, this shower head deliver the standard 2.5 gallons per minute and cannot be adjusted.
I  like the rain shower head but I am disappointed in the quality of this shower faucet trim. I expected a match with my Devonshire sink faucets: the style is similar but the face plate and some other parts feel more like tin, get water spotted and are impossible to clean. I would not recommend.
Great faucet that works well with quality finish. Beware of the fact that another plumbing part is required from Koehler to use this faucet. Took me awhile to figure this out.
I'm going to try it, but I'll probably end up just replacing the head with something else.I definitely would not buy this shower head again.
I am very impressed with the quality of this product. The color matches my other bathroom accessories, which is brushed nickel, perfectly. The shower is very heavy duty and I am very pleased with this product. Would absolutely recommend.
This is a beautiful fixture, but the finish scrapes/chips very easily. Also, notice what comes with it. We had to go to a bathroom specialty shop to buy a mixer type thing (~$40) to run the water through. Lowe's and Home Depot don't sell the mixers. They claim their products already include them.
Answer: no