The Anti Odor Proof Floor Drain Core is an essential bathroom accessory that effectively prevents unpleasant odors and insects from entering your home through the drain. Crafted from durable ABS material, this drain core is designed to withstand daily use and ensures long-lasting performance. Its innovative design features a gravity-activated gasket that automatically opens when water flows through the drain, allowing wastewater to escape smoothly. Once the water flow ceases, the gasket automatically closes, creating an airtight seal that effectively blocks foul odors and prevents insects from entering.