correct filter size

[Trustco]

i am having trouble finding correct filter sizes for some coleman/upg air handlers i installed. Model # AHR60D3XH21 , seems to be like 21.5 x 21.5, also the build in filter channel is screwed in from outside in , so i reversed the scews after uncrating.

[mb20fan]

Just get the hog hair cut to size filter.

[Trustco]

i might use some metal to acommondate 20x20 filters, very short returns, ill check static pressures. worst case ill
take your advice mb20, thanks.

[mb20fan]

That seems to be the best way to solve your problem.Plus it`s washable so no trash in landfill.