Extract valve, KOOLAIR, model GPD, with volume control by manual rotation of the central part and with mounting ring.
White colour enamel (constructed in steel sheet).
Other models
GPD. Circular exhaust outlet.
GPDI. Circular supply outlet.
GPD-Auto. Circular self-adjusting plastic extract
valve.
BEAK. Circular aluminium extract valve.
Mounting
With metal mounting ring (-AM).