Tired of nasty sewer smells coming up through your drains? This COLDDD water-sealing drain core is here to save the day! It uses an innovative mini bottle trap design that creates a water barrier to block odors and prevent backflow - no more stinky bathroom or kitchen! The 2.4-inch depth model holds enough water to maintain odor protection for about 20 days, which is perfect for most homes. It's made from super durable 304 stainless steel that won't rust or corrode, so you can count on it lasting for years. Installation is seriously easy - it's pretty much plug and play for drainage openings between 1.5 to 2.0 inches in diameter. The expanded rubber ring helps it fit securely without any leaks. The best part is that all the components are detachable for easy cleaning when needed - no more nasty hair clogs or buildup. It works great for showers, bathroom floors, kitchens, washing machines, bathtubs - anywhere you have drainage issues. The water-seal principle means it quickly drains excess water while keeping just enough to form that protective barrier. Say goodbye to chemical drain cleaners and hello to fresh, clean-smelling spaces. This little device makes such a big difference in home comfort!