I have an old filter register that requires a 13.5" X 29.5 air filter. I measured it twice. It is NOT 14" X 30". It will NOT hold a 14" X 30" filter I tried, it falls in. The blower motor cannot handle anything other than one of those cheap, old fashion fiberglass disposable filters, it does not have enough force. The filter register has not been modified, I checked it very carefully. I cannot find a manufacturer name anywhere on the register, I checked that too. Some company made it and probably a whole lot of them at some time. My guess is whichever company made it probably makes filters for it or knows someone who makes filters for it. The size may be metric since it corresponds to 75cm X 34cm, but I don't know of any other country that uses forced air other than the United States or any foreign manufacturer of air filters for that mater. If you have any idea as to who might have made such a filter register, please let me know. Thank you.
- posted
16 years ago