- Upgrade your Oster Pro 1200 Blender and newer Master Series with the reliable 182341-000-842 Silicone Sealing O-Ring Gasket. Designed for optimal performance, this gasket ensures a secure seal, preventing leaks and enhancing blending efficiency. - Compatibility: Specifically designed for Oster Pro 1200 Blenders and newer Master Series models with a 4.25-inch top opening on the motor base. Ensure the top opening measures exactly 4.25 inches for a proper fit. - Durable Material: Made from high-quality silicone, this gasket offers long-lasting durability and resistance to wear, ensuring a reliable seal even with frequent use. - Easy Installation: Replacing the gasket is straightforward, making it easy to maintain your blender's performance without professional assistance. - Part Number Replacement: This gasket replaces part number 182341-000-842, making it a perfect solution for wear and tear over time. - Model Compatibility: Works seamlessly with the following models: BLSTJJ, BLSTEP, BLSTPBR, BLSMB-CGB-000, BLSMB-GTF-000, BLSMB-CBF-000, BLSMB-BBG-000, BLSTMB-CBG, BLSTMB-CBF, and BLSTMB-BBG. - Use Scenarios: - Restore your blender's functionality after regular wear or damage to the original gasket. - Ensure consistent blending results when preparing smoothies, sauces, or soups without the worry of leaks. - Maintain the integrity of your kitchen appliances for daily use or meal prep. - Visual Confirmation: Refer to the second and third pictures to verify compatibility with your blender model before purchase.