Where to mail order parts of A/C?

Hi,
Can anyone suggest a reputable place to mail order parts for centrol A/C system?
I need to buy a blower wheel (of air handler) for my Carrier central system.
Thanks,
-SZ
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TRY; http://www.expertappliance.com/carrier-heating.html http://www.nuclimate.com/hvac_parts.htm http://www.carrierhvacparts.com/companyinfo.htm
BTW, it only took about 2 seconds to find these with GOOGLE.
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Thanks, steve,
I did try google search and find some also. But I just want to know a reliable vendor (also with good price) which google does not tell.
The 3 links you provided seem to be very informative.
Thanks again.
SZ

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