2 Pcs Bite Valve Replacement for Zak Designs Water Bottle, Water Bottle Mouthpiece Accessories BPA Free Silicone Cap Lid Spout Parts for Zak Designs 15/15.5/16/19/25/27 OZ

Fits Zak bottles perfectly and fairly easy to install. I had to use a flathead screw driver to pop the original spout out and then I used scissors to cut the valve off (after popping the spout out of the hinges, pull it up a bit and snip the tube with scissors). These replacements went in easier. The silicone bite spout is softer than the original, so we'll see how long these will last.

My kids chewed up the spouts on their Zak water bottles. These fit perfectly, but I didn't replace the hard plastic part. To get the original silicone part out, I had to just cut it. The replacement is really easy to put it in though. I feel like it functions the same as the original.

Easy to switch out and fit perfectly. Definitely nice to have some backups as my kiddo chews on the tips .

These are the BEST replacements to the Zak leak proof bottles with straws!!

They were a little hard to change out. But they fit perfectly and are snug with no leaks.

We are happy to find a replacement part for our kid’s favorite water bottle. We thought we would need to throw it away after he bit into it. Design is just like the original and the spout was well made. We never had a hard time cleaning it and it functions just as well as the original. Just be aware though that taking out the original spout from the bottle is a little hard to do but once you take it out, you’re good to go. So good replacement parts are available now so we avoid wasting money getting new bottles each time.

I noticed in the description it didn't mention that it fit the 14 oz water bottles but it looked like the spout we already had so I figured I would give it a try. My daughter tends to chew on the water bottle spout so we had two that needed replacing. I am unsure on how to get the spouts out of the water bottle without cutting them. I cut both of them but I'm sure there's an easier way to do it that I couldn't figure out. They fit perfectly And I was able to replace both. I did not replace the plastic piece, just the silicone piece. The plastic piece on ours is perfectly fine but I also couldn't figure out how to get that out. I do feel like instructions should come with this. Also just the PSA I recommend cleaning inside of that spout regularly because when I took out the old spout to put in a new one I noticed there was a buildup of mold in there. I was able to clean everything with a little straw brush. I definitely recommend these. They fit great.

Easy to use, work just as expected. My kids have a bad habit of chewing on these and I don't want to just throw out the whole bottle so I was excited to find replacements. Would recommend!