





Check valve x1, steel dowel x1, zip ties x2, adhesive glue x2, auxiliary patches x2, aluminum foil tape x1, expansion screws x4

Toilet Flue Check Valve
CNÂ¥15.96

Bathroom-specific [Multiple diameters + Connectable] Blue
CNÂ¥21.94
Upgradeable visual check valve for kitchen
Prevents oil smoke from returning, suitable for various household kitchen smoke ducts
Anti-after-exhaust smoke, high-temperature resistance
Easy to install with variable diameter ring design
Scientific and rapid smoke exhaust system
Inclined gravity closure design to prevent oil smoke reflux
Bionic disc design for smooth smoke exhaust
Four-layer sealing to block oil smoke effectively
High-quality ABS main body for durability
Upgrade level meter design for easy installation
Visual window for monitoring smoke exhaust status
Product dimensions are manually measured and may have slight errors. Please refer to the actual product for accuracy.

[Bestselling Classic Model] One Kitchen, Two Bathrooms
CNÂ¥152.00

[Quality Model] Bathroom Check Valve with Level Gauge
CNÂ¥25.46