Instruction: Answer the given question using the supporting document.

Input:
Question: Why did the company change to a bullet shape filter?
Document: I use to buy that Brita filter setup. But after trying this Zero Water I'm convince and glad I paid hard earned money for it. The replacements came fast and securely packaged. One thing is that when it's time to change the filter you will know it cause the water will taste funny.
I've had zero technology for over 10 years on our counter over the years has changed canisters and shape of filters  but never lost its worth with us we keep coming back for more and will never get rid of it.
We've been buying zerowater filters for nearly 5 years and the past 4 filters have each lasted less than a month. Previously, their filters would last approx. 6 months. It seems that this company has become successful and is too busy too maintain the quality of their product. Going back to Brita.
These filter is not the same as the first ones it does not very well i will wait a while to see.
I tend to go through one filter a month  and am very concious of changing these out.
This filter does take the solutes away from water and gives truly Zero TDS water. Great for coffee and espresso machines. Will not clog up these machines.
This is my favorite water filter because it filters out all the crude that most other filters do not. It comes the closest to &#34;pure&#34; water tha you can get, and it is much cheaper than the bottled water from the grocery store.
I've used this pitcher for over a year. I bought new filters and these new ones make the water taste really strange. I switched to a Brita filter. Very disappointing.
The only filter available to my zero water pitcher. Just wish it really read 000 when installed. Sometimes it does, sometimes it doesn't,  Once  you get  used to the filtered water, the tap water tastes &#34;nasty&#34;.
I have been using Zero Water filter for over two years now and never disappoints. The quality of the filtered water is very distinct, you can taste the difference. I use it in almost everything -- for cooking in general, steaming clothes (no hard water built up) other than for drinking. Highly recommended.
Answer: We called the company with the same question, but got no answer. I do know the new filters take longer to filter the water bc they accumulate air pockets. We were told to tap the sides to dislodge the air bubble, but found it easier to disspell the air by punching small holes in the top screen and THEN tapping the sides, They still make the best filters for excellent Keurig coffee makers. I'm guessing when I say the reason is probably to use less plactic. I wish they would start a recycling program. Like a dollar off your next order for each filter returned, along with free shipping to return them. I also wish there was a way to recycle the coffre cups. From what I've read, they've become a landfill blight.