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Universal Ice/ Water Filter, Inline

Part Number: AP4415498
MFG Part Number: 4378411RB
Made by: Whirlpool
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$19.19 $3.06

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16 Questions & Answers


By Whirlpool. Replace every 6 to 12 months. Used on refrigerators that do not have built-in water filters. This filter is installed in the water line, behind the refrigerator.

Genuine Whirlpool part. Whirlpool brands include Whirlpool, Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and others.
Whirlpool also makes various appliance models for Sears / Kenmore.

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Cross Reference Information

Part Number 4378411RB (AP4415498) replaces 4378411, 4378411RP, R0183114, 14200105, 1603265, 18001001, 18001001A, 4210359, 4210508, 4210573, 4378442, 8004, AH2351893, EA2351893, PS2351893, R1831-14.

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I have changed out the inline icemaker/refrigerator filter 4378411RB and the Pur filter 1 for a Maytag french door refrigerator with an icemaker basket (not in the door) recently. I have ran several batches of ice now, but there is still have an odor, kinda like an onion smell. What else is there to do to eliminate this. It seems to be making sufficient ice.

Lynette for Model Number inline icemaker/refrigerator 4378411RB and Pur filter 1 for Maytag frigerator


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I wasn't able to flush out the filter during replacement installation. How many batches of ice, should I discard, before I use the new ice? Whirlpool inline 4378411 RB filter for icemaker/refrigerator

Lynette for Model Number in line water filter 4378411RB


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I don't see a water filter anywhere on or in this model. Can you tell me the filter that would work with this unit? My research says "4378411RB" should be the one. Thanks.

Tom for Model Number KSRS22QAWH21


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Latest Questions

Searching for a replacement water filter, original # for a side by side Kitchen Aid is 4378411 (RB) which is in stock at your store, however, when I enter the frig. model KSRS25QGWH01 a red flag comes up saying " it is not compatible with my unit? what gives.

Luis Nevarez for Model Number KSRS25QGWH01


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My WhirlPool Type 21MTFA has a top freezer with Icemaker,, but no in door water. Is there an in-line or other water filter which can be installed on this model? There does not appear to be any place for a filter in the bottom grrill, but I am not sure. Please also respond by email. Thanks, John

John for Model Number Whirlpool Type: 21MTFA


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I ordered this universal ice and water filter to install on my Amana refrigerator/freezer. The instructions tell me that I need to fix it on a 1/4" water supply line at the back of the refrigerator. But the water line at the back is tough 1/2" flexible metal-covered line that is too tough and big for this water line at the back. Is there any other way to install it?

Hugh R for Model Number WPL 4378411RB


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