* Suitable for rooms that are enclosed spaces; rooms without direct exhaust.
* Diameter 100, 150 & 200 mm.
* Manufactured from white polypropylene (RAL9010); heat resistant to 100 C.
* Variable air flow control.
* No leakage between valve body & mounting frame.
* Simple removal for cleaning.
* For mounting in places with small spaces, a clamping ring is added.