Tumbler Adapter for Stanley to Flavor Cartridge, Compatible with Stanley Quencher H2.0 FlowState Stainless Steel Tumblers 40oz&64oz, Adapter to Flavor Cartridge, BPA Free, Food Grade Silicone

I got the Tumbler Adapter for my Stanley to use flavor cartridges, and it’s honestly a total game-changer! The adapter fits perfectly — super secure with no leaks or weird wobbles. It was really easy to install; I just popped it on and was ready to go in seconds.Now I can enjoy flavored water straight from my Stanley tumbler without having to switch bottles or mess with anything complicated. It makes staying hydrated so much more fun and convenient, especially on busy days. Plus, the quality feels really solid — sturdy plastic that’s clearly built to last.If you're looking to add a little flavor boost to your Stanley without giving up your favorite tumbler, this adapter is 100% worth it. Highly recommend!

I bought this adapter to use my flavor cartridges with my Stanley Quencher H2.0 40 oz glass, and it has been an excellent decision! The installation was super easy thanks to its flexible and food-grade silicone design. It fits perfectly to the glass, there are no leaks or drips, and the best thing is that it does not alter the taste of the water.

Works great! Easy fit and helps me to drink more water! No leaking and can carry anywhere with no spill. Very easy to put together.

Very useful accessory! The nozzle fits perfectly to my thermos mug, fits snugly, does not leak liquid and helps to keep the drink temperature longer.Pros:✔ Convenient opening mechanism - easy to use even with one hand.✔ Leakproof - you can safely carry it in your bag without worrying about leaks.✔ High-quality material - does not have a foreign smell, withstands hot drinks well.✔ Easy to care for - easy to wash, you can even put it in the dishwasher.If your old lid is worn out or not comfortable enough, this nozzle is a great solution! Very happy with the purchase.

Returned. This didn’t even work with my cup at all. U couldn’t get any flavor to come through it at all and the way it sits in the cup makes it impossible to close. I had to kinda try to tweak it to get it to shut then when I had it finally connected I attempted to drink but u can’t without tipping the cup. Which is the reason I wanted this, so I could sip and not have to swig buy tipping cup. Def not gonna try it again. Got my money back and bought a regular cirkul cup. 🤷‍♀️

Works great! East fit helps to drink more water! No leasing can carry any where and no spill. Very east to put together.

This is for just the lid, it will fit on a Stanley cup or any other knockoff that has a twist on lid. I love my circle and this attachment made it even better. You can actually suck it up like a straw instead of like a water bottle. Comes with a lid to cover when you don’t have a cartridge in. Super quality at a great price.

I never really cared for the original bottle that came with the cirkul cartridges - when I saw this was made for my Stanley cup I was excited. This made it so much easier and functions so much better than the actual cirkul bottle. I love that it comes with a handle as well. I also feel that the water is easier to drink from than the original cirkul bottle. Well done!!! I love this product!! I can actually USE the rest of my cirkul cartridges now. I was ready to throw them away before this came along.