Features:

  • ✅ 30 OZ REPLACEMENT RUBBER LID SEAL: Looking to replace rubber gaskets to fit perfectly with your stainless-steel tumbler? Presenting our 30 oz spill proof rubber lid seals now available with a diameter of 3.5 INCHES. These lid seals are 100% spill-proof and spill resistant.
  • 💯 SUPREME QUALITY TUMBLER LIDS: These pair of 2 rubber rings are made of top food grade rubber. They are eco-friendly, non-toxic & BPA free. They are an ideal match with Ramblers from YETI, Ozark Trail, SIC and other renowned brands.
  • 🎁 EXCEPTIONAL WARRANTY: We believe in delivering 100% customer satisfaction with 30 days money back guarantee, no questions asked. It also comes with a special 10% discount coupon on every next C&Berg product – C&Berg is an Amazon registered brand, authorized seller of these trademarked products
  • ♨️ DIFFERENCE THAT MATTERS: The package includes 2 - 30 Oz vacuum leakproof and spill proof rubber lids seal. Use it comfortably while walking, running or driving and keep your drink cool or hot for longer durations.
  • ✨ EASY TO USE AND CLEAN: The 2-pack replacement rubber lid seal is a replacement item and can be installed quickly and cleaned from time to time. The best part is the lids don’t lose their shape. These new rubber seals can work as a great improvement between the tumbler and the lid.
Fantastic Lid!

I love using this cup because it holds my ice all day, but the lid was open and I was always spilling out of it. These lids are amazing and have been life changing. I use to always spill trying to carry my cup with everything else and get in/out of my car. My get-into-everything-toddler was always trying to grab my cup, which would spill. NOW- NO SPILLS in the week I've been using it. He took my cup, flipped it off the table and carried it down the hall and my carpet remained dry. I'm THRILLED to have this product. Note: In the picture, it's full of ice and water and not leaking!

Vacuum suction

I have 2 30 oz tumblers. Different mfrs. 1 it fits perfect and I am so glad to have a mug that does not leak or spill and an open/close drinking spout. The 2nd cup that I actually bought it for because my grandson accidentally dropped and broke my lid for which is also a 30 oz tumbler it will not fit. I feel upset tumbler is only few weeks old and now a useless $18 item. But these lids are amazing. Love the vacuum suction fit in tumbler along with vacuum suction close. No worries of any little creppy crawleys getting in in the dark and then sipping them up a straw or drinking them in a swallow while your sitting outside around the fire pit, camping, at the beach, on vaca, etc.

Prefer this lid to the standard/default ones that come with the cup

Perfect alternative to the standard lid these cups come with. I like the option to seal it, in case of spills or my toddler picking it up and dropping it. I bought metal straws to go with it, because the opening to drink from is sunken lower than the lip of the lid (the original ones without the sliding option are too), so when I drink without a straw the liquid seeps out sideways inside of straight out of the opening into my mouth. Would be nice to have a sealable lid with a higher aperture to the lip. But with a straw it is perfect!

PERFECT lid for my Yeti Rambler and Greens Steel BEAST 20 oz. Tumblers

Outstanding lid for my Yeti Rambler and Greens Steel BEAST 20 oz. tumblers. Three things I like about these lids: - Slider mechanism (don't care for flip-type lids) - Ingenious silicone sealing design (will have to see how it holds up under normal wear and tear, but looks solid) - Lid fit is a little less tight than the stock lids for both my tumblers (I don't have to wrestle to take it off) PLEASE NOTE: When using with HOT beverages, allow the contents to sit for a few minutes before sliding the lid closed. This lid seals SO well that the lid will actually pop up somewhat due to thermal expansion of the air above the beverage. This is NOT a defect in the lid - it's just basic physics. I usually prepare my hot coffee and tea in the morning and pour into my two mugs, put the lids on with the slider slightly open to allow it to vent. Then when I'm ready to head out the door 15-20 min. later, I slide them closed with no worries about thermal expansion popping the lids up. My wife has a Greens Steel BEAST 30 oz. Tumbler and I will certainly be purchasing a set of these for her mug. Solid construction, clever design, airtight & leakproof function, fantastic value. Great job, C&Berg!!!

Working well so far!

The gasket on first set of lids that I ordered was bad and wouldn't let the Yeti lid seal correctly. I contacted the seller and they quickly replaced the gasket. I've noticed that there can be some leakage if the Yeti is laid on it's side for a long period in a bag but it works really well in preventing large leaks from the cup if it's knocked over. I'm satisfied and would order again from this seller.

Great lids, great customer service!!

UPDATE: This company really stands behind their products. My original lids had some issues and they happily replaced them and gave me the choice of lids I wanted as a replacement. Customer service like this is super hard to find!! The new lids are working great!! In the beginning, I absolutely loved these. My problem is, over time they grow mold in the spout cover. The way it’s designed, there’s no way to get in there to clean it and when I tried to pry it out the lid cracked as shown in the picture.

The Best Replacement Lid Available - They Are Not Created Equally

I initially ordered a competing product, a different replacement lid, for my 30 oz. RTIC cup. I never realized that these aftermarket lids were not created equally. This lid is tight and truly spill proof. You can hold your cup upside down with this lid on, and the lid won't budge. The fact that you can keep the lid closed is even better. I am a real estate photographer and I'm constantly driving from house to house, and being able to keep the lid closed prevents bugs and gnats from finding their way into your drink. If you need to replace your lid, this is the one to get. Don't bother with the other ones. There is a reason this has such good reviews.

PERFECTLY DESIGNED

I had purchased the 2 SPILL PROOF 30 oz Sliding Yeti Lids and Rtic Lids, NO LEAK & Splash Proof Replacement Silicon Slider Locking Closure, 2 Lids for Tumbler, Fit Ozark, Open / Close, Straw Friendly by C&Berg and I must say it was the perfect purchase!! I had issues with my other lids with spillage and this one is rightly designed to prevent that from happening. And as an added bonus it is straw friendly!! This product has been a lifesaver, especially because my children have a habit of knocking their drinks over!!! I will definitely be buying from C&Berg again!! 5 stars all the way!!! 2 SPILL PROOF 30 oz Sliding Yeti Lids and Rtic Lids, NO LEAK & Splash Proof Replacement Silicon Slider Locking Closure, 2 Lids for Tumbler, Fit Ozark, Open / Close, Straw Friendly by C&Berg

So much better than the flip opening yeti lids.

Tried the flip opening yeti lids first and they broke quickly (see my review). These are great seals well so doesn't leak if tipped. Easily slides open and closed. Took me a while to realize I need to not open it all the way needs the vent hole unsealed to drink out of otherwise the liquid comes out slowly. Once I started that I have no complaints. I drink tea out of it a lot and that gets tea stains on lid the are hard to get out of edges that is why have only 4 stars on easy to clean.12/26/18 update: I dropped my lid and the slider popped off unlike the Yeti flip lids it didn;t break it just popped right back on with no problem. Love these lids. I soak my lid in bleach water and comes clean easily even in the crevices. Don't waste you money on flip style lids. Will only buy these from now on.

YETI pay attention!

I received a Yeti 30oz mug for Christmas but never used it because the MagSlider lid is just about useless on a travel mug as it isn't spill proof. Someone suggested looking for a third party lid and I found this listing. Fantastic! Just that one word is needed. I can leave my mug on it's side (and it happened) for 10 minutes and not even a hint of moisture got through the silicone seals. Been using my mug for over a month with this lid and works just as well as the day I put it on. Plus you get 2 in the package anyway so you have a spare or a second one if you have the smaller 14oz mug. Only issue I have with this lid is cleaning it. When the slider is opened and closed several times over the course of a day coffee and tea residue gets underneath the slider and there isn't a way to pop it apart as far as i can see so you have to dribble dish soap in the gap and slide it back and forth to work it underneath and then use hot water again sliding it back and forth to clean out the slider.

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