wrote in message
...
Can someone recommend a source for custom-size air filters for
residential HVAC?

I need 1"x25"x22" filters, and the closest sizes I've seen (at my
local WalMart, HomeDepot, Lowe's) were 1x25x25 and 1x25x20.



Grainger sells filter rolls so you can cut your own size. Maybe you can get
a sheet metal shop to fabricate a frame for you. http://www.grainger.com

http://www.grainger.com/Grainger/cat...er-media-rolls

You could try a plumbing supply or HVAC supply company as well.