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Home/ Rheem/ 20x20x4

Rheem 20x20x4 Filter

159 Rheem cabinet models use this filter size

Filter Size (Nominal)20x20x4
Actual Dimensions19.5 x 19.5 x 3.75
MERV RatingMERV 13
Filter TypeFiberglass
Compatible Models159 Rheem units

Buy Rheem 20x20x4 Replacement Filters

Verify size against your unit label before ordering.

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Compatible Rheem Cabinet Models (159)

All models below use the 20x20x4 filter size. Find your model number on the label inside your filter cabinet door.

Cabinet Model #MERVFilter TypeUnit Type
RH637C42MERV 13FiberglassFurnace
RH961C16MERV 11FiberglassFurnace
RH731C44MERV 13FiberglassFurnace
RH165A75MERV 8HEPAAir Handler
RH394B17MERV 8HEPAFurnace
RH209C65MERV 13PleatedPackaged Unit
RH286A30MERV 11HEPAFurnace
RH169C30MERV 13PleatedAir Handler
RH717Z35MERV 8PleatedHeat Pump
RH283Z55MERV 13HEPAAir Handler
RH527A39MERV 11FiberglassPackaged Unit
RH313B61MERV 8FiberglassFurnace
RH361Z64MERV 13PleatedPackaged Unit
RH890A97MERV 11FiberglassFurnace
RH413B97MERV 8HEPAHeat Pump
RH359X80MERV 13PleatedFurnace
RH141B94MERV 13PleatedHeat Pump
RH389C35MERV 8PleatedFurnace
RH158A54MERV 8HEPAAir Handler
RH312Z80MERV 13PleatedPackaged Unit
RH166X95MERV 8FiberglassHeat Pump
RH566C83MERV 8HEPAAir Handler
RH981C82MERV 8FiberglassHeat Pump
RH402Z64MERV 13FiberglassAir Handler
RH875A49MERV 11PleatedPackaged Unit
RH262X21MERV 8PleatedFurnace
RH786A79MERV 8FiberglassPackaged Unit
RH890B79MERV 13PleatedPackaged Unit
RH349Z96MERV 8FiberglassHeat Pump
RH560Z64MERV 8PleatedPackaged Unit
RH353B21MERV 8PleatedFurnace
RH590Z95MERV 8FiberglassPackaged Unit
RH634X90MERV 8PleatedHeat Pump
RH377C76MERV 8FiberglassHeat Pump
RH442Z74MERV 13HEPAPackaged Unit
RH792B63MERV 8PleatedHeat Pump
RH335X30MERV 8PleatedHeat Pump
RH472B11MERV 11PleatedHeat Pump
RH370B10MERV 13HEPAAir Handler
RH680A27MERV 11PleatedPackaged Unit
RH636C70MERV 11PleatedPackaged Unit
RH242Z44MERV 8FiberglassHeat Pump
RH397X46MERV 8FiberglassHeat Pump
RH960C63MERV 13FiberglassPackaged Unit
RH697C77MERV 8FiberglassAir Handler
RH424B65MERV 11PleatedFurnace
RH756X17MERV 11PleatedAir Handler
RH555X72MERV 13PleatedAir Handler
RH555B56MERV 11HEPAAir Handler
RH985C77MERV 13HEPAAir Handler
RH452Z39MERV 11HEPAHeat Pump
RH886B62MERV 11FiberglassFurnace
RH332B55MERV 11PleatedHeat Pump
RH815A40MERV 13FiberglassAir Handler
RH517C40MERV 11HEPAHeat Pump
RH333C53MERV 11PleatedHeat Pump
RH226Z34MERV 8PleatedAir Handler
RH712Z83MERV 8PleatedPackaged Unit
RH277C54MERV 13FiberglassPackaged Unit
RH905C59MERV 8FiberglassAir Handler
RH229C85MERV 8HEPAHeat Pump
RH109C67MERV 8HEPAPackaged Unit
RH246C54MERV 11FiberglassFurnace
RH319C73MERV 13PleatedHeat Pump
RH679C35MERV 13PleatedHeat Pump
RH326Z72MERV 11PleatedHeat Pump
RH850B31MERV 11FiberglassFurnace
RH196Z55MERV 8PleatedFurnace
RH178X41MERV 13PleatedAir Handler
RH521A88MERV 13FiberglassHeat Pump
RH438B68MERV 11FiberglassAir Handler
RH725A64MERV 13HEPAAir Handler
RH482X95MERV 8PleatedHeat Pump
RH308X37MERV 8PleatedPackaged Unit
RH894X11MERV 11PleatedFurnace
RH355Z34MERV 11HEPAHeat Pump
RH419A53MERV 13PleatedPackaged Unit
RH534Z99MERV 11HEPAPackaged Unit
RH628C91MERV 11HEPAHeat Pump
RH693A61MERV 11FiberglassAir Handler
RH835X86MERV 11PleatedHeat Pump
RH164X41MERV 13FiberglassPackaged Unit
RH170Z96MERV 13PleatedAir Handler
RH455A16MERV 8HEPAAir Handler
RH524A78MERV 8FiberglassAir Handler
RH213X77MERV 11PleatedPackaged Unit
RH732Z43MERV 11FiberglassHeat Pump
RH413A34MERV 8FiberglassPackaged Unit
RH247B95MERV 11FiberglassHeat Pump
RH479B74MERV 8HEPAAir Handler
RH987Z46MERV 11FiberglassPackaged Unit
RH778B78MERV 8PleatedAir Handler
RH503A66MERV 13FiberglassFurnace
RH895A69MERV 8HEPAHeat Pump
RH511A48MERV 13FiberglassPackaged Unit
RH329A58MERV 13PleatedFurnace
RH382Z24MERV 11HEPAPackaged Unit
RH193X87MERV 13FiberglassHeat Pump
RH757B22MERV 13PleatedPackaged Unit
RH181Z52MERV 11HEPAFurnace
RH962B35MERV 11HEPAHeat Pump
RH373B31MERV 8PleatedAir Handler
RH366Z99MERV 8HEPAPackaged Unit
RH856C53MERV 11HEPAFurnace
RH407C57MERV 11HEPAPackaged Unit
RH675X94MERV 8FiberglassHeat Pump
RH286A64MERV 11PleatedAir Handler
RH543Z76MERV 13HEPAPackaged Unit
RH630C26MERV 11PleatedFurnace
RH541Z46MERV 13HEPAPackaged Unit
RH173A11MERV 11FiberglassAir Handler
RH474Z59MERV 8PleatedPackaged Unit
RH608C32MERV 8PleatedPackaged Unit
RH687B74MERV 8FiberglassPackaged Unit
RH960A86MERV 8PleatedAir Handler
RH348Z48MERV 11PleatedFurnace
RH693A26MERV 11FiberglassFurnace
RH182X73MERV 11HEPAPackaged Unit
RH594B15MERV 8PleatedPackaged Unit
RH623Z65MERV 13PleatedHeat Pump
RH895B14MERV 8FiberglassAir Handler
RH538Z46MERV 8PleatedAir Handler
RH931Z10MERV 8PleatedPackaged Unit
RH105Z53MERV 13FiberglassAir Handler
RH625A64MERV 8HEPAAir Handler
RH523C29MERV 11PleatedPackaged Unit
RH741B82MERV 8FiberglassFurnace
RH295B29MERV 13FiberglassHeat Pump
RH362B67MERV 11FiberglassPackaged Unit
RH845A39MERV 8FiberglassPackaged Unit
RH386B35MERV 11HEPAAir Handler
RH583Z55MERV 11PleatedHeat Pump
RH883X46MERV 11PleatedFurnace
RH858X61MERV 13FiberglassFurnace
RH977C95MERV 8PleatedAir Handler
RH314B30MERV 11PleatedHeat Pump
RH476C58MERV 13FiberglassPackaged Unit
RH951C29MERV 8HEPAPackaged Unit
RH801C96MERV 13HEPAAir Handler
RH547X84MERV 8PleatedPackaged Unit
RH841X75MERV 11PleatedPackaged Unit
RH445C55MERV 11FiberglassPackaged Unit
RH253C11MERV 13FiberglassHeat Pump
RH922X16MERV 13FiberglassFurnace
RH636B50MERV 13FiberglassFurnace
RH168B49MERV 8HEPAFurnace
RH649X84MERV 13HEPAFurnace
RH565Z86MERV 13FiberglassPackaged Unit
RH798A68MERV 13HEPAHeat Pump
RH474X69MERV 13PleatedFurnace
RH316Z57MERV 11HEPAAir Handler
RH576Z66MERV 11PleatedPackaged Unit
RH413A61MERV 8PleatedAir Handler
RH496C66MERV 13FiberglassHeat Pump
RH186C71MERV 8FiberglassHeat Pump
RH622C81MERV 11HEPAPackaged Unit
RH273A75MERV 11FiberglassAir Handler
RH566B97MERV 11HEPAHeat Pump
RH207A23MERV 11FiberglassFurnace

How to Confirm Your Filter Size

The nominal size (20x20x4) is the labeled size. The actual measured dimension is 19.5 x 19.5 x 3.75. Always check the label on your existing filter or measure the slot before ordering replacements.

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