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Home/ American Standard/ 18x20x1

American Standard 18x20x1 Filter

211 American Standard cabinet models use this filter size

Filter Size (Nominal)18x20x1
Actual Dimensions17.5 x 19.5 x 0.75
MERV RatingMERV 13
Filter TypeFiberglass
Compatible Models211 American Standard units

Buy American Standard 18x20x1 Replacement Filters

Verify size against your unit label before ordering.

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Compatible American Standard Cabinet Models (211)

All models below use the 18x20x1 filter size. Find your model number on the label inside your filter cabinet door.

Cabinet Model #MERVFilter TypeUnit Type
AM827C82MERV 13FiberglassAir Handler
AM839Z44MERV 11PleatedAir Handler
AM437B55MERV 13PleatedHeat Pump
AM928X57MERV 13PleatedAir Handler
AM396A26MERV 8FiberglassHeat Pump
AM839Z62MERV 8HEPAFurnace
AM912A47MERV 11HEPAHeat Pump
AM915B55MERV 8PleatedHeat Pump
AM707B87MERV 13HEPAPackaged Unit
AM104X56MERV 11FiberglassHeat Pump
AM704B88MERV 11HEPAPackaged Unit
AM566C33MERV 8HEPAAir Handler
AM323Z87MERV 8FiberglassFurnace
AM130Z91MERV 8PleatedPackaged Unit
AM812X61MERV 13PleatedAir Handler
AM271A10MERV 8PleatedHeat Pump
AM351C61MERV 11PleatedFurnace
AM471X20MERV 13HEPAHeat Pump
AM897Z75MERV 11HEPAAir Handler
AM829C27MERV 8FiberglassFurnace
AM776X63MERV 13HEPAPackaged Unit
AM733X50MERV 13HEPAHeat Pump
AM171A50MERV 8HEPAAir Handler
AM446X52MERV 13HEPAPackaged Unit
AM212Z92MERV 13PleatedFurnace
AM582C41MERV 13HEPAPackaged Unit
AM199X92MERV 11PleatedAir Handler
AM335A17MERV 8PleatedFurnace
AM947C54MERV 11PleatedHeat Pump
AM388A33MERV 8PleatedHeat Pump
AM299C80MERV 13HEPAAir Handler
AM530C88MERV 11HEPAPackaged Unit
AM316B58MERV 11FiberglassPackaged Unit
AM810X85MERV 13FiberglassPackaged Unit
AM634C95MERV 11PleatedFurnace
AM748C26MERV 8FiberglassFurnace
AM453B67MERV 11HEPAHeat Pump
AM759X42MERV 13FiberglassFurnace
AM266X19MERV 11FiberglassHeat Pump
AM102C86MERV 13PleatedHeat Pump
AM298A44MERV 8HEPAAir Handler
AM662X19MERV 11HEPAHeat Pump
AM869B97MERV 8PleatedPackaged Unit
AM377B11MERV 11FiberglassFurnace
AM966Z41MERV 13HEPAPackaged Unit
AM339B25MERV 11PleatedFurnace
AM258C75MERV 13PleatedHeat Pump
AM922Z34MERV 8FiberglassPackaged Unit
AM727Z42MERV 11FiberglassAir Handler
AM740A96MERV 13FiberglassFurnace
AM274B63MERV 13HEPAHeat Pump
AM788B54MERV 8FiberglassHeat Pump
AM472Z71MERV 13HEPAFurnace
AM501B25MERV 11FiberglassAir Handler
AM503B61MERV 13HEPAFurnace
AM527A42MERV 8PleatedFurnace
AM733B93MERV 11HEPAPackaged Unit
AM697A25MERV 11FiberglassHeat Pump
AM554X67MERV 11PleatedPackaged Unit
AM111X90MERV 13FiberglassFurnace
AM899Z59MERV 13FiberglassHeat Pump
AM490X53MERV 11PleatedAir Handler
AM739B59MERV 13FiberglassAir Handler
AM783X57MERV 11HEPAPackaged Unit
AM702B41MERV 13FiberglassPackaged Unit
AM318C97MERV 13FiberglassAir Handler
AM176Z95MERV 8PleatedFurnace
AM951B35MERV 11FiberglassFurnace
AM938Z39MERV 11FiberglassAir Handler
AM452Z54MERV 13FiberglassFurnace
AM259X71MERV 8PleatedPackaged Unit
AM535Z37MERV 8PleatedPackaged Unit
AM564B41MERV 8FiberglassAir Handler
AM941B27MERV 8FiberglassAir Handler
AM173A25MERV 13FiberglassAir Handler
AM622C26MERV 8HEPAPackaged Unit
AM351A93MERV 13FiberglassHeat Pump
AM399Z96MERV 8HEPAAir Handler
AM821X96MERV 11HEPAHeat Pump
AM731C42MERV 13FiberglassHeat Pump
AM341C83MERV 11HEPAFurnace
AM535Z54MERV 8FiberglassAir Handler
AM767B52MERV 13HEPAHeat Pump
AM778Z31MERV 11PleatedFurnace
AM919X62MERV 13HEPAPackaged Unit
AM124C90MERV 11FiberglassAir Handler
AM112Z99MERV 11FiberglassAir Handler
AM859A64MERV 11HEPAPackaged Unit
AM829A65MERV 13FiberglassAir Handler
AM523B55MERV 13HEPAAir Handler
AM498B58MERV 11PleatedHeat Pump
AM478A52MERV 11PleatedFurnace
AM703Z59MERV 11HEPAAir Handler
AM195Z97MERV 13PleatedFurnace
AM597X43MERV 11FiberglassFurnace
AM160X82MERV 13PleatedFurnace
AM230B29MERV 11HEPAHeat Pump
AM767X45MERV 13HEPAHeat Pump
AM277B26MERV 8PleatedHeat Pump
AM573B68MERV 8HEPAAir Handler
AM820Z60MERV 13PleatedHeat Pump
AM329C47MERV 8FiberglassFurnace
AM446X90MERV 11PleatedPackaged Unit
AM517X55MERV 8PleatedPackaged Unit
AM840Z63MERV 11FiberglassFurnace
AM633X68MERV 13FiberglassFurnace
AM305X83MERV 8FiberglassPackaged Unit
AM812Z58MERV 11PleatedFurnace
AM846A18MERV 8HEPAAir Handler
AM968A58MERV 8PleatedHeat Pump
AM628B12MERV 11FiberglassHeat Pump
AM545A30MERV 8HEPAFurnace
AM446C78MERV 13PleatedAir Handler
AM690C26MERV 13FiberglassFurnace
AM626A19MERV 11HEPAFurnace
AM739Z57MERV 13PleatedHeat Pump
AM981B34MERV 13FiberglassFurnace
AM809A61MERV 8PleatedFurnace
AM316B77MERV 8HEPAAir Handler
AM288Z40MERV 11HEPAAir Handler
AM522X87MERV 8HEPAPackaged Unit
AM204Z47MERV 11PleatedPackaged Unit
AM613X22MERV 11FiberglassHeat Pump
AM569B61MERV 13FiberglassPackaged Unit
AM463X44MERV 13HEPAPackaged Unit
AM558B99MERV 11FiberglassAir Handler
AM609C17MERV 11PleatedPackaged Unit
AM789B31MERV 13FiberglassHeat Pump
AM851B13MERV 8FiberglassAir Handler
AM750C17MERV 13PleatedAir Handler
AM893B60MERV 11FiberglassFurnace
AM246A92MERV 13PleatedAir Handler
AM336B64MERV 13PleatedFurnace
AM462C78MERV 11PleatedFurnace
AM335A48MERV 11PleatedAir Handler
AM844X65MERV 11HEPAHeat Pump
AM756C73MERV 8FiberglassAir Handler
AM126A28MERV 11FiberglassHeat Pump
AM436C81MERV 11FiberglassFurnace
AM646A87MERV 11HEPAHeat Pump
AM328C17MERV 13FiberglassAir Handler
AM119X30MERV 11HEPAAir Handler
AM840B20MERV 13PleatedHeat Pump
AM723C72MERV 13PleatedAir Handler
AM625B45MERV 11FiberglassFurnace
AM155C48MERV 11HEPAFurnace
AM417C70MERV 11PleatedPackaged Unit
AM416B35MERV 13PleatedFurnace
AM890A11MERV 13HEPAHeat Pump
AM210X10MERV 13FiberglassAir Handler
AM896X41MERV 8HEPAAir Handler
AM644C89MERV 11HEPAPackaged Unit
AM334Z30MERV 11HEPAAir Handler
AM375B59MERV 11FiberglassPackaged Unit
AM168A12MERV 8HEPAAir Handler
AM157Z62MERV 13PleatedFurnace
AM677A74MERV 8HEPAHeat Pump
AM164B94MERV 13PleatedFurnace
AM408B95MERV 13PleatedAir Handler
AM505C96MERV 13HEPAPackaged Unit
AM731B68MERV 8HEPAFurnace
AM573Z67MERV 13FiberglassPackaged Unit
AM482Z21MERV 11FiberglassFurnace
AM266C63MERV 8HEPAFurnace
AM685C77MERV 8FiberglassFurnace
AM580X99MERV 8FiberglassAir Handler
AM638A33MERV 8HEPAHeat Pump
AM512X23MERV 8FiberglassHeat Pump
AM424A21MERV 11HEPAAir Handler
AM542B93MERV 11FiberglassFurnace
AM823A11MERV 8HEPAHeat Pump
AM576X75MERV 13HEPAPackaged Unit
AM731X68MERV 11HEPAHeat Pump
AM779C76MERV 11HEPAFurnace
AM842A69MERV 11PleatedPackaged Unit
AM516A83MERV 11FiberglassHeat Pump
AM535A80MERV 11PleatedAir Handler
AM254B35MERV 8HEPAPackaged Unit
AM240C29MERV 11HEPAFurnace
AM481X66MERV 13HEPAFurnace
AM534A20MERV 11HEPAPackaged Unit
AM824B40MERV 8FiberglassHeat Pump
AM905X48MERV 13PleatedPackaged Unit
AM510Z64MERV 8FiberglassPackaged Unit
AM772X51MERV 11FiberglassFurnace
AM355A91MERV 8FiberglassAir Handler
AM608B22MERV 8HEPAPackaged Unit
AM479X39MERV 8HEPAPackaged Unit
AM339A88MERV 8FiberglassPackaged Unit
AM154B27MERV 13PleatedFurnace
AM594A15MERV 11HEPAFurnace
AM407X49MERV 11PleatedPackaged Unit
AM372C25MERV 8PleatedFurnace
AM483Z70MERV 11HEPAHeat Pump
AM648A42MERV 13HEPAPackaged Unit
AM788A21MERV 11HEPAHeat Pump
AM755Z93MERV 11HEPAHeat Pump
AM759Z95MERV 8HEPAFurnace
AM449X95MERV 8FiberglassAir Handler
AM931B75MERV 13HEPAHeat Pump
AM275X65MERV 13HEPAPackaged Unit
AM864A12MERV 13FiberglassAir Handler
AM712C83MERV 11FiberglassPackaged Unit
AM579Z84MERV 13FiberglassPackaged Unit
AM349X92MERV 8PleatedHeat Pump
AM125X64MERV 8PleatedHeat Pump
AM357C97MERV 13PleatedPackaged Unit
AM426X76MERV 11FiberglassAir Handler
AM623B77MERV 8HEPAPackaged Unit
AM582A92MERV 11PleatedPackaged Unit
AM528B37MERV 13HEPAAir Handler

How to Confirm Your Filter Size

The nominal size (18x20x1) is the labeled size. The actual measured dimension is 17.5 x 19.5 x 0.75. Always check the label on your existing filter or measure the slot before ordering replacements.

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