Found 2 3D-models for “ac flange” across many websites

#exhaust hose collar#adapter#wall collar#air conditioning#59inch#Whynter#ARC-14S#portable#exhaust hose mount#pipe flange
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5.9 Inch Air Conditioner Exhaust Hose Wall Adapter

5.9 Inch Air Conditioner Exhaust Hose Wall Adapter

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Whynter ARC-14S Adapter Hose Flange Mount (fixed tab)

Whynter ARC-14S Adapter Hose Flange Mount (fixed tab)

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