Drain odour stopper with built-in backflow preventer designed to keep drains fresh, block insects and reduce bacterial exposure. Key benefits Eliminates foul smells from sinks, showers and baths so you and your household enjoy a cleaner, more pleasant space. Blocks insects and bacteria with an integrated backflow preventer for improved hygiene. Prevents wastewater backflow while maintaining large drainage capacity—does not collect standing water. Simple, tool-free installation fits most standard drain pipes. Features and compatibility Two common sizes: standard 50 mm and international 75 mm to match most household plumbing. High drainage flow: engineered not to restrict water and avoids water retention that causes odours. Easy to install and remove for cleaning or inspection; suitable for DIY installation in most sinks, showers and bathtubs. Who this is for Homeowners and renters who want a quick, reliable way to stop drain smells. Landlords and property managers looking for an effective, low-maintenance solution for multiple units. Anyone needing a hygienic upgrade for busy kitchens and bathrooms. Practical applications Kitchen sink: prevents food-related smells and keeps insects out of the drain. Shower or bathtub: stops sewer odours from coming up during and after bathing. Rental or managed properties: quick install during tenant turnover or preventive maintenance to reduce complaints. What to expect A straightforward fit into existing drain openings in the listed sizes. Consistent performance that minimizes odours without impeding drainage. A cleaner, more comfortable environment for household use. Order and install quickly for immediate odour control and improved drain hygiene.