Swirl diffuser with fixed curved blades with hinged perforated plate, KOOLAIR, model DAFC-Q-PR, size _, plate dimension of _x_. Made in steel sheet. Finished in any RAL colour upon request.
Incorporates plenum box made of galvanised steel sheet with volume control damper. Recomended instalation height between 2,5 and 3,5 m.
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