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BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22633
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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I have a Heil A/C central air unit and takes a 17 1/2 x 21 x

Customer Question

I have a Heil A/C central air unit and takes a 17 1/2 x 21 x 1 inch air filter. Can't seem to find it/ I've used others from Walmart 16x 20x 1 and they get sucked up into unit!.
Does Sears have this size filter?
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.


My name is Billy. You can order these online easily....or have your local hardware store order them in. It is just not one of the "cookie cutter" sizes that are more common.

Look at the link HERE

Usually your local hardware can get them in a couple days.