40oz Stanley-Compatible Dual Drink Separator Insert – 2-in-1 Beverage Divider for Tumblers

Transform your 40oz tumbler into a two-in-one convenience essential with our 40oz Stanley-Compatible Dual Drink Separator Insert. Designed for two-drink lovers, this smart accessory divides your tumbler into two separate leak-minimizing compartments, letting you enjoy two drinks at the same time—iced coffee + water, smoothies + juice, or any combo you prefer.

Made from durable, premium-grade material, it fits snugly inside most 40oz Stanley tumblers and similar large cups, ensuring flavors stay completely separated while maintaining easy sipping and portability. Whether you’re heading to the gym, office, university, or running errands, this dual drink divider maximizes your tumbler’s functionality without compromising style.

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Key Features

• Specifically designed for 40oz tumblers (compatible with Stanley 40oz)
• 2-in-1 dual chamber design — keep two drinks separate
• Flavor separation technology to prevent mixing
• Durable, reusable & easy to clean
• Perfect for daily hydration, gym sessions, travel & busy routines
• Lightweight accessory that instantly upgrades your tumbler

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What’s Included

1× Dual Drink Separator Insert (tumbler not included)