At 10:51 PM 8/19/2013, Eric Caron wrote:
>         I just noticed that my camper is missing the
> rectangular    shaped plastic vent that goes on the post near the driver's

To amplify a bit what Alistair said -- the rear cold-air vents
operated by the bottom lever on the heater panel are routed through
large tubes in the front doors, with seals at front and rear of each
door.  On the Westy there are no vents on the left side, so the seals
are omitted and the left-side outlet from the heater box in front is
blanked off.

Yours,
David