---
product_id: 647736608
title: "Silicone Spill Stopper Set Compatible with Stanley Cup 2.0 30oz & 40oz with Straw Cover (Set of 2, Mist)"
brand: "dunlague"
price: "€ 11.72"
currency: EUR
in_stock: true
reviews_count: 13
category: "Dunlague"
url: https://www.desertcart.hr/products/647736608-silicone-spill-stopper-set-compatible-with-stanley-cup-2-0
store_origin: HR
region: Croatia
---

# food-grade odorless silicone dishwasher safe & reusable 360° spill-proof seal Silicone Spill Stopper Set Compatible with Stanley Cup 2.0 30oz & 40oz with Straw Cover (Set of 2, Mist)

**Brand:** dunlague
**Price:** € 11.72
**Availability:** ✅ In Stock

## Summary

> 🛡️ Sip Smart, Spill Less – Elevate Your Stanley Game!

## Quick Answers

- **What is this?** Silicone Spill Stopper Set Compatible with Stanley Cup 2.0 30oz & 40oz with Straw Cover (Set of 2, Mist) by dunlague
- **How much does it cost?** € 11.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/647736608-silicone-spill-stopper-set-compatible-with-stanley-cup-2-0)

## Best For

- dunlague enthusiasts

## Why This Product

- Trusted dunlague brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Straw Dust Shield:** Innovative straw cover blocks dust and debris, ensuring every sip is pure.
- • **Effortless Fit & Use:** Designed to perfectly fit Stanley Quencher H2.0 30oz & 40oz tumblers for seamless installation.
- • **Premium Safe Silicone:** Crafted from food-grade, odorless silicone for a clean, fresh drinking experience.
- • **Eco-Friendly & Durable:** Dishwasher safe, reusable, and backed by a lifetime warranty—sustainability meets convenience.
- • **Ultimate Spill Defense:** 360° anti-spill protection keeps your Stanley Cup leak-free, even if tipped over.

## Overview

The Silicone Spill Stopper Set by DUNLAGUE offers a leak-proof, 360° spill protection system compatible with Stanley Quencher H2.0 30oz & 40oz tumblers. Made from food-grade, odorless silicone, this set includes round and square stoppers plus straw covers to prevent spills and dust contamination. Dishwasher safe and backed by a lifetime warranty, it’s the perfect upgrade for professionals who demand both style and function in their hydration gear.

## Description

Shop DUNLAGUE at the desertcart Dining & Entertaining store. Free Shipping on eligible items. Everyday low prices, save up to 50%.

Review: Worth the buy, 10/10 would buy again - Shipping was quick, received a day earlier than expected. One star removed due to a square stopper mouth piece missing, though that was to be expected after reading that in many of the reviews. Very quick and easy to install, simple instructions included but not necessary and came in a nice plastic container to keep the extra parts. The color match is impeccable, you can barely tell they're aftermarket prices. I had about 20oz of water in my Stanley when I installed these, and immediately turned the cup upside down over the sink for 30 seconds, and repeated a few times and found no leakage. Removed star was added back for product doing what it says it should. I handwashed and did not run through the dishwasher and I do not use my Stanly for hot liquids so I cannot answer for temperature retention. I have only just installed so I also cannot answer for durability, but they seem like they will hold up - even the straw cover seems like it will last. Sizing is perfect, the square stopper mouth piece is a little oversized, but that is how it should be and is still easy to install. 10/10 would order again if I purchased another Stanley.
Review: Good quality seal set - I adore these stoppers. They fix what the premium cup “brand” couldn’t or wouldn’t. Stops all leaks. Fit well. Works well. Nice color. They will create a much stronger suction when drinking from the straw. I use a silicone straw and will gently press the straw away from the seal wall in order to let a small amount of air flow through to help offset the internal pressure. These seals are awesome.

## Features

- 2 sets mist leak proof stopper, each set contains 1* straw cover, 1* round lid leak stopper, 1* square spill stopper. Made of food-grade odorless silicone, compatible with Stanley Quencher H2.0 FlowState Tumbler 30oz & 40oz
- This spill proof set compatible with Stanley offers all-round 360°anti-spill protection, no more spills if your tumbler is accidentally tipped over
- Enhances the drinking experience by softening the hardness of the silicone and cutting a slit in the round lid stopper for air flow
- Place the straw cover cap on the straw to prevent dust; Squeeze the square spill stopper into the sip part to seal for anti leak purpose; Round lid spill stopper is installed underneath the cup lid, press it downwards
- A wide range of color options to perfectly match with stanley cup. Why not take this cup accessories as a gift for family, kids, and friends

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9BF26WN |
| Best Sellers Rank | #7,287 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #130 in Tumblers & Water Glasses |
| Brand Name | DUNLAGUE |
| Closure Type | Snap |
| Color | Mist |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,667) |
| Included Components | 2*Round Stopper, 2*Square Stopper, 2*Straw Cover |
| Is the item dishwasher safe? | Yes |
| Is the item microwaveable? | No |
| Item Type Name | Spill Stopper for Stanley |
| Item Weight | 1.16 Ounces |
| Manufacturer | DUNLAGUE |
| Manufacturer Part Number | SS-31 |
| Manufacturer Warranty Description | Lifetime Warranty |
| Material Type | Silicone |
| Model Number | SS-31 |
| Number of Pieces | 6 |
| Product Style | Casual |
| Shape | Round, Square |
| Unit Count | 2.0 Count |

## Product Details

- **Brand:** DUNLAGUE
- **Color:** Mist
- **Item Weight:** 1.16 Ounces
- **Material:** Silicone
- **Style:** Casual

## Images

![Silicone Spill Stopper Set Compatible with Stanley Cup 2.0 30oz & 40oz with Straw Cover (Set of 2, Mist) - Image 1](https://m.media-amazon.com/images/I/61gz+5akzBL.jpg)
![Silicone Spill Stopper Set Compatible with Stanley Cup 2.0 30oz & 40oz with Straw Cover (Set of 2, Mist) - Image 2](https://m.media-amazon.com/images/I/61HAxgfuKhL.jpg)
![Silicone Spill Stopper Set Compatible with Stanley Cup 2.0 30oz & 40oz with Straw Cover (Set of 2, Mist) - Image 3](https://m.media-amazon.com/images/I/61r0agx+JAL.jpg)
![Silicone Spill Stopper Set Compatible with Stanley Cup 2.0 30oz & 40oz with Straw Cover (Set of 2, Mist) - Image 4](https://m.media-amazon.com/images/I/61Z15Ac1RLL.jpg)
![Silicone Spill Stopper Set Compatible with Stanley Cup 2.0 30oz & 40oz with Straw Cover (Set of 2, Mist) - Image 5](https://m.media-amazon.com/images/I/71o+WCM23hL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worth the buy, 10/10 would buy again
*by J***E on April 8, 2026*

Shipping was quick, received a day earlier than expected. One star removed due to a square stopper mouth piece missing, though that was to be expected after reading that in many of the reviews. Very quick and easy to install, simple instructions included but not necessary and came in a nice plastic container to keep the extra parts. The color match is impeccable, you can barely tell they're aftermarket prices. I had about 20oz of water in my Stanley when I installed these, and immediately turned the cup upside down over the sink for 30 seconds, and repeated a few times and found no leakage. Removed star was added back for product doing what it says it should. I handwashed and did not run through the dishwasher and I do not use my Stanly for hot liquids so I cannot answer for temperature retention. I have only just installed so I also cannot answer for durability, but they seem like they will hold up - even the straw cover seems like it will last. Sizing is perfect, the square stopper mouth piece is a little oversized, but that is how it should be and is still easy to install. 10/10 would order again if I purchased another Stanley.

### ⭐⭐⭐⭐⭐ Good quality seal set
*by L***C on June 24, 2025*

I adore these stoppers. They fix what the premium cup “brand” couldn’t or wouldn’t. Stops all leaks. Fit well. Works well. Nice color. They will create a much stronger suction when drinking from the straw. I use a silicone straw and will gently press the straw away from the seal wall in order to let a small amount of air flow through to help offset the internal pressure. These seals are awesome.

### ⭐⭐⭐⭐⭐ Works well
*by J***R on February 22, 2026*

Perfect! I love my cup but hate that it leaks. I’ve had it leak in some not so great places. Using all three parts makes it leakproof. I didn’t want to buy another cup.

## Frequently Bought Together

- Silicone Spill Stopper Set Compatible with Stanley Cup 2.0 30oz & 40oz with Straw Cover (Set of 2, Mist)
- Stanley Quencher H2.0 Tumbler with Handle and Straw 30 oz | Flowstate 3-Position Lid | Cup Holder Compatible for Travel | Insulated Stainless Steel Cup | BPA-Free | Mist
- Stanley Quencher Tumbler Straws | Reusable Replacement Straws for Tumbler with Handle | Stainless Steel Drinking Cup Accessory | BPA-Free

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**Shop now:** [https://www.desertcart.hr/products/647736608-silicone-spill-stopper-set-compatible-with-stanley-cup-2-0](https://www.desertcart.hr/products/647736608-silicone-spill-stopper-set-compatible-with-stanley-cup-2-0)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-21*