337 x 132 mm  192 cm² Air flow, for inner and outer side  (Cut-out dimensions 320 x 115), black.
337 x 132 mm   192 cm² air flow, for inner and outer side  (Cut-out dimensions 320 x 115 mm), white.
With damper  Plastic  140 cm² air flow   (Cut-out dimensions 320 x 115)
, white.
Black plastic.   192 cm² air flow   (Cut-out dimensions 320 x 115).
Plastic   192 cm² air flow  (Cut-out dimensions 320 x 115)
, white.
337 x 132 mm  140 cm² air flow, to inner side  (Cut-out dimensions 320 x 115)
, white.