Compatibility: Designed for BrüMate Era 30oz & 40oz tumblers, these silicone sealing rings offer a tight, leak-resistant fit with an unstretched inner diameter of approx. 3.35 inches (85mm)
Reliable Sealing Function: These flexible tumbler gasket rings form a snug fit that helps reduce spills and preserve your drink’s temperature for longer
Quality Material: Crafted from soft-touch, food-grade silicone, these o rings offer long-term durability, resist deformation and discoloration, and maintain elasticity after frequent cleaning
Practical Pack Options: Choose between a 4-pack or 8-pack of replacement sealing rings—ideal for daily rotation, family use, or sharing between multiple tumblers at home or on the go
Easy to Install & Clean: Install in seconds without tools – simply remove the old tumbler seal and replace it with the new one. Dishwasher safe and hand washable, maintaining hygiene has never been easier
