Lin, That's what I am looking at now. I found some I like, made of aluminum, but painted white. Considering how to remove the white without damaging the grill.TOM
They look like they are easily available in a plain aluminum finish.http://www.atlantasupply.com/swscripts/NLNETUPD.OBJ?REQR_TYPE=O&REQR_ID=NEW+CUSTOMER&AUTH_ID=+&&LOC_NO=001&PROD_CAT_NM=Wall+Register&PC=WC&SC=X9&REQUEST_ID=CCATSEL_AS2