Exhaust Fan Check Valve for Bathroom Kitchen Anti Odor Control Valve Flue Smoke Control

Features:
Long use, no deformation power lasting, to ensure fine sealing performance
Anti-oil sticky, no leakage of smoke; silicone gasket, strong sealing effect, prevents the smell of smoke
Preventing reverse irrigation, preventing mosquitoes
The check valve is made of ABS material, the surface is more smooth and burr free, more environmental protection.
Two-way connection, more convenient installation, more convenient cleaning and maintenance.
Compact design, small installation space.