Shower Drain Backflow Preventer – Magnetic Seal, Hair Catcher, Stainless Steel

Upgrade your bathroom or floor drain with this **high-performance shower drain backflow preventer**, designed to block odors, prevent backflow, and keep your pipes clear of debris. The **magnetic closure valve** creates a tight seal after use, eliminating sewer gas odors while allowing fast, unrestricted drainage when needed. Made from **304-grade stainless steel**, this drain core resists rust, corrosion, and daily wear—perfect for high-moisture environments like bathrooms, basements, or laundry rooms.

The **universal variable-diameter design** (fits **1.77″–3.5″ ID pipes**) includes a **large-diameter rubber reducer (3.93″)** that can be trimmed to size with scissors, ensuring a snug fit for nearly any standard or non-standard drain. The **easy-clean hair catcher** traps hair, soap scum, and debris, preventing clogs while requiring just a quick rinse under running water. Installation is a breeze—simply cut the reducer to fit, insert the drain core and hair trap, and secure with the included **silicone gasket** for a leak-proof seal. Ideal for homeowners seeking durability, odor control, and hassle-free maintenance.