Odor Proof Floor Drain Valve & Sewer Core Backflow Preventer
Odor Proof Floor Drain Valve & Sewer Core Backflow Preventer
Keep your kitchen, bathroom, and laundry areas smelling fresh with this Odor Proof Floor Drain Valve & Sewer Core Backflow Preventer. Designed for a plug-and-play installation, this smart floor drain insert blocks sewer gases, prevents backflow, and filters out hair and debris — all without the need for tools or professional help.
Why You'll Love It
- Effective Odor Barrier: Thickened silicone liner creates a reliable seal that blocks sewer gases from entering your home, keeping indoor air fresh and clean.
- Gravity-Driven Drainage: Innovative 90° gravity opening and closing mechanism allows water to drain quickly and efficiently, preventing floor flooding.
- Backflow Prevention: Built-in sewer core stops waste water from flowing back up through the drain, protecting your floors and home.
- Detachable Filter Basket: The grille filter basket catches hair, debris, and foreign objects before they enter the pipe — and pops out easily for quick cleaning.
- Fits Most Floor Drains: Designed for drain apertures of 36–39 mm, making it compatible with the vast majority of standard floor drains.
- Wide Application: Perfect for bathroom shower drains, kitchen floor drains, toilets, basements, garages, and laundry rooms.
- Easy Installation: Simply plug it in — no tools, no plumber required. Upgrade your drain in seconds.
Specifications
| Material | PC Rubber / Copper Ring / Plastic Filter |
| Drainage Type | Gravity Straight Row |
| Water Seal Height | 120 mm |
| Compatible Aperture | 36–39 mm |
| Installation | Plug and Play |
| Country of Origin | Made in Mainland China |
Package Includes
- 1 × Floor Drain Core / Sewer Backflow Preventer
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Learn more: EPA registered disinfectants
Frequently Asked Questions
Q: What size floor drain is this odor proof drain valve compatible with?
A: This floor drain sewer core is designed to fit drain apertures of 36–39 mm, which covers the vast majority of standard residential floor drains found in bathrooms, kitchens, and laundry rooms. Always measure your drain opening before purchasing to ensure a proper fit.
Q: How does the backflow preventer stop sewer odors from entering my home?
A: The drain core uses a thickened silicone liner combined with a 120 mm water seal height to create an airtight barrier against sewer gases. The gravity-operated 90° valve opens when water flows through and closes automatically when dry, blocking any odors or backflow from the sewer pipe.
Q: Is the filter basket easy to clean?
A: Yes! The grille filter basket is fully detachable. Simply lift it out, rinse away any trapped hair or debris under running water, and place it back in — no tools required. Regular cleaning helps maintain optimal drainage speed.
Q: Can this floor drain insert be used in multiple locations around the home?
A: Absolutely. This versatile sewer core backflow preventer is suitable for bathrooms, shower rooms, kitchens, toilets, basements, garages, and laundry areas — anywhere with a standard floor drain that needs odor protection and backflow prevention.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.