5 Pack Thickened Adjustable Silicone Floor Drain Backflow Preventer, Anti-Odor Sewer Core, One-Way Valve Fits 40mm to 50mm Drain Pipe, Deodorant Seal for Bathroom Kitchen Shower

💧 Strong Seal & Filtration – One-way silicone valve with V-shaped filter blocks odor, filters debris, and prevents backflow for cleaner, fresher drains. 📏 Universal Adjustable Fit – Designed for 1.57"–1.97" (40–50mm) pipes in bathrooms, showers & laundry. Two rings included for flexible installation; use outer ring for larger pipes. 🪳 Stops Odor & Pests – Auto-seal valve and wave mesh design block cockroaches, bugs, and sewer gases. Say goodbye to drain smells and infestations. 🔧 Easy Installation – Just insert into drain. No plumber needed. Easy to remove and clean. Trim bottom if needed for faster water drainage. 🌱 Eco-Friendly & Durable – Made of flexible, high-quality silicone that’s eco-friendly, elastic, and deformation-resistant. Effectively blocks odors long-term.