2 Sets of Thermos Stainless King (TM) -Compatible 16 Ounce Travel Tumbler/Mug Gaskets/Seals by Maplefield Products - BPA-/Phthalate-/Latex-Free - 2 Full Replacements Per Kit

I’ve been buying these same replacement gaskets for my Thermos for years. They’re great. Fit perfect, quality materials.

Present for my wife who now can keep coffee hot for much longer than lesser brands. This is far superior in the cap sealing. It screws on and the open/close works well. We purchased a replacement seals kit just to have on hand. The cap does come apart to thoroughly clean. But not necessary every time; it gets clean by setting cap to ‘open’ and rinsing with hot water. Seems to work well. If and when we ever need new seals, I have them and would order another kit at that time. I believe with care this cup will be around a long time. Worth the money. Ps There is a premium brand or two that may be good as well, but they are considerably more money.

I was very happy to find this product so that I could fix my old Thermos that I have had for years. However.... before I figured it out, I was greatly disappointed because I had the same issue so many here have outlined, whereas the flow just dribbled out when the top was in the open position after this kit was installed. I have seen various remedies which includes modifications, etc. However... before you go nuts... TRY THIS:The small, round, cylindrical part of the kit that goes around the center shaft of the cap is DIRECTIONAL! Meaning that the part has an upside, and a downside, and it needs to be installed in the right direction for the cap to work. If you look at this part carefully, you will see that it has a small lip that runs around the inside perimeter at one end. The end with the internal lip, faces down when installed. This keeps the item in place and allows it to push the valve of the cap open when you flip the lever to the “open” position. If you install it upside down... this part will just slide down the shaft and will not apply the proper pressure to open the valve (resulting in the reduced flow of liquid).I’m sure this explains why the mixed reviews. Some people say the kit works great, some say it doesn’t... depends if you got it right or not. It’s a 50/50 shot and the kit does not come with instructions. If you are having issues with poor flow, this is the part to look at.

They were a good replacement parts, unfortunately they are not currently available.

the product worked.

Perfect fit. Keeps the old cup going.

Perfect fit and perfect seal for a 16-oz Thermos stainless tumbler. A fraction of the cost of replacing the lids. And a snap to replace.The first image is of a removed, stained gasket set next to the new gasket set.The second image shows the tumblers and lids with the new gasket sets installed and the old stained gasket sets that were replaced.

I tried this out when it came 2 days sooner than expected. I boiled up some water and poured it into the jug, opened the spout to screw the lid on, closed the spout and turned it over to see if would leak. Nothing. The outside of the mug remained at room temperature and never did get warm, which means that the vacuum is ok. I got a good one.Some of the reviews I've read, complain about all the sticky glue you have to remove when you remove the stickers. The Thermos people must have read them also because now they come with a sticker that is heat shrunk to the mug. There was no glue to remove. Good job on that account. Highly recommend this to anyone who likes to keep their hot drink hot for a long time. A word of caution tho, you should test the drink for temp. before adding the lid if putting hot liquid in because you might burn your tongue, get it to the temp. your comfortable with before putting the lid on. As far as cleaning is concerned, the lid needs to be taken apart in order to clean properly, not in a dishwasher. There are a few youtuber that you can look up and they go through the process of how to do it. I would also recommend getting the IMPRESA thermos compatible 16oz tumbler gasket kit. There are 2 sets of gaskets in the package. There are 3 gaskets in the lid and I got them for just in case. About 7 to 8 bucks to purchase on Amazon.