Inquiry (采购产品): Replacement filters I need to order a few replacement filters for bathroom vents. They are metal grill units roughly 7 5/8"x7" with a center mounting hole. The only nuber on them is the patent - 4,227,904. Where can I obtain these and how can I find a product #? Thanks, Brad **** Hidden Message ***** Brad Gallagher FL 33433 USA Company: Pro Sound Phone: 786-999-2655 E-mail: prosoundbrad@gmail.com **** Hidden Message ***** prosoundbrad@gmail.com
