PVC Fan Vent Check Valve for Bathroom and Kitchen Exhaust, Round Pipe Airflow Control Backdraft Damper, 80mm 100mm 110mm 120mm 150mm 200mm, White(150mm)

PVC FAN VENT CHECK VALVE: Prevents backdraft and maintains airflow efficiency in bathroom or kitchen exhaust systems with a reliable round pipe design

LONG LASTING PVC CONSTRUCTION: Resists erosion and wear from continuous use while delivering stable performance across varying humidity levels

AVOIDING REVERSE AIRFLOW: Automatically closes when fan shuts off to stop For odor-resilient air from re-entering room through 80mm to 200mm duct sizes

COMPATIBLE WITH STANDARD DUCTING: Fits for usual round duct setups and works seamlessly with existing ventilation fans without modification

For EASY TO INSTALL IN MINUTES: Lightweight design allows quick insertion into ventilation line For ensuring consistent operation right after setup