Air conditioning vents

Those of us that are fortunate to have air conditioning installed seem to still have a problem. I would like to know where to find the fragile little plastic vents that crumble to dust over time.. Is ANYONE in contact with people who can either get these, make these, or sitting on a stock pile of OEM replacements??
Michel/Brussels/Belgium

BONJOUR

J'ai le même probleme je suis en train de remettre en etat ma clim
en depannage j'ai mis une grille noire .

Part contre vous allez peut-être pouvour me donner les renseignements
suivants: la valeur ohmique , la puissance et la localisation de la resistance
de variation de vitesse du ventilateur de clim

Merci

they are almost impossible to find welsh ent. might have a used one but its going to cost you plenty. i just bought a used duct assy. on eby for 108.00 just to get a couple vents i have not recived it yet so we will see.other wise call the vintage car salvage guys probabley going to take a lot of calls.