Used for circulation when the bonnet is connected to the ventilation filter - NOT REQUIRED. The service life depends on the intensity of use.
Suitable for these models GC DUAL, GC DUAL A WH 45, GL, GT PLUShttp://www.cata.es/en/catalog/hoods/built-in-hoods/gc-dual/43http://www.cata. es /en/catalog/hoods/built-in-hoods/gc-dual-a-wh-45/357http://www.cata.es/en/catalog/hoods/built-in-hoods/gl/44http: / /www.cata.es/en/catalog/hoods/built-in-hoods/gt-plus/45.