Brew Better, Brew Smarter! 🍻 Designed for #6 openings, ensuring a snug seal. Easily fits in your brewing setup without taking up space. Ideal for homebrewers and craft beer enthusiasts alike. Crafted from high-quality rubber for long-lasting use. Weighs only 0.3 lbs, making it easy to handle. Mechanical Component Lightweight Design Made in Canada The Craft A Brew HOZQ8-040 Brewcraft #6 Rubber Stopper Airlock Hole is a high-quality mechanical component designed for homebrewing. With compact dimensions of 1.5" L x 1.4" W x 1.0" H and a lightweight design of just 0.3 lbs, this durable rubber stopper is made in Canada and ensures a perfect fit for your brewing needs.