Check valve flue hood kitchen bathroom special exhaust pipe check valve anti-one-way smoke valve exhaust ventilation

Four sizes of reducers

Four sizes of reducer ring Most of the pipe hoods are applicable

How much do you know about the dangers of grease and smoke?

Kitchen fumes seriously affect the health of your family

Anti-smoke return, soot only comes out, not in.

When not exhausting smoke, the gravity spring double closure prevents the return of grease and smoke.