2 Pack 40 oz Tumbler Flip Straw Lid Replacement fit for Stanley Quencher, Spill Proof Splash Resistant Tumbler Lids,Reusable Tumbler Cover for Stanley Cup (Black+Light Purple)

This lid is leak-proof and fits a 40oz Stanley perfectly. I have seen some reviews where people are complaining and leaving 1 star for not fitting a Hydrojug. Please read the description; this lid is made for a 40 oz Stanley. Love love love this lid!!

The grooves on these lids do not match the grooves on the Stanley cups giving a small gap that liquid can leak through…disappointing.

Got these for my Stanley cups and they fit a 40oz perfectly and work well!

This fits on my 40oz Stanley tumbler, but there is no way to disassemble to clean. The way it’s made, it would be very easy to grow mold. If anyone can figure out how to disassemble and clean this would be the most convenient product for Stanley users! Will be returning.

The media could not be loaded.  I love these lids! Toss your Stanley lid and get THESE. I love the rubber rim and silicone seal. I’ve knocked this over several times and nothing leaks. I did notice that if you take it on an airplane, when the cabin pressurizes, if it has liquid in it and it’s on its side, pressure will force liquid out of the tiny vent hole beneath the fold down straw. 5 out of 5 ⭐️⭐️⭐️⭐️⭐️!

It didn't fit my 40 oz bottle it was too small. Sooooooo sad

The media could not be loaded.  I bought these tops to gony husband and my no name 40 oz tumbler. These lids fit on both of them. They do not leak when closed and seem to be as good a quality as the hydro jug lid.

I got these for our 40oz Stanley quenches to replace the original lids that leak. These lids are just like the hydrojug ones and DO NOT LEAK. They are fantastic! They are easy to screw on and unscrew.