Kenmore 9990, 46-9990 Refrigerator Water Filter Replacement

Slow dispenser flow and off-tasting water are the two most reliable signs a refrigerator filter has run past its effective life. The Kenmore 9990, 46-9990 is the certified replacement for select Kenmore side-by-side, bottom-freezer, and top-freezer refrigerators that use this filter code. NSF 42 and 53 certified to reduce lead, cysts, and chlorine taste and odor, it covers the primary water quality concerns most households face on standard municipal water. 

Two practical details worth knowing before ordering: the 9990 uses a slide-and-twist installation design that differs from the push-in and eject styles used on other Kenmore models, and it is cross-compatible with LG refrigerators using the LT600P filter. Same filter, different label. 

Why Choose the Kenmore 9990 Water Filter

The Kenmore 9990 water filter carries NSF 42 and 53 certifications, reducing lead, cysts, and chlorine taste and odor. Independent third-party testing backs these claims. Here is what the 46-9990 specifically addresses:

• Lead and cysts, Cryptosporidium and Giardia
• Chlorine taste and odor
• Sediment, rust, and particulates
• Class I particulates down to 0.5 microns
• Common household water impurities

Kenmore 9990 Filter Specifications

• Product Name: Kenmore 9990, 46-9990 Refrigerator Water Filter
• Certification: NSF 42 and 53
• Filter Capacity: 300 gallons
• Filter Life: Up to 6 months
• Flow Rate: 0.5 GPM
• Operating Temperature: 33 to 100 degrees Fahrenheit
• Working Pressure: 30 to 120 PSI
• Dimensions: 12.125 inches L x 2.25 inches W x 2.25 inches H
• Color: White with blue cap
• Installation Type: Slide-and-twist, tool-free
• Compatible Fridge Types: Kenmore side-by-side, bottom-freezer, top-freezer and select LG models using LT600P
• Brand: Kenmore  

Easy Installation for the Kenmore 46-9990 Water Filter

The 9990 uses a slide-and-twist design, which differs from the push-in or push-button eject styles used on other Kenmore filter models. No tools required. Here is how the swap works:

1. Locate the filter housing inside the refrigerator, typically in the upper right corner or base grille depending on the model
2. Slide the old filter out by pulling it straight toward you
3. Insert the new Kenmore 9990 filter and twist clockwise until it locks firmly into place
4. Flush 2.5 gallons of water through the dispenser before use to clear air pockets and carbon fines from the new filter
5. Reset the filter indicator light per the refrigerator user guide

When to Replace the Kenmore 46-9990 Filter

Replace the Kenmore 9990 refrigerator water filter when any of the following occur:

• Every 6 months or 300 gallons, whichever comes first
• Water picks up a flat taste or faint chlorine smell
• Dispenser flow slows noticeably
• The filter indicator light activates on the refrigerator panel

Key Benefits

• NSF 42 and 53 certified, independently tested for lead, cyst, and chlorine reduction
• 300 gallon capacity over a six month service life
• Slide-and-twist tool-free installation unique to the 9990 housing
• White with blue cap design for easy identification at replacement time
• Reduces Class I particulates down to 0.5 microns

FAQs

What makes the Kenmore 9990 different from other Kenmore filters?

The 9990 uses a slide-and-twist installation design rather than a push-in or push-button eject style. It also carries cross-compatibility with LG refrigerators using the LT600P filter. The 9990 carries NSF 42 and 53 certifications covering lead, cysts, and chlorine reduction. It does not carry NSF 401 coverage for emerging compounds, which is worth noting for households with specific water quality concerns.

Is the Kenmore 9990 compatible with LG refrigerators?

Yes. The Kenmore 9990 is functionally equivalent to LG LT600P and fits compatible LG-made Kenmore models. Always verify the refrigerator model number before ordering to confirm compatibility.

What part numbers does the Kenmore 9990 replace?

The 9990 directly replaces LT600P, 5231JA2006A, 5231JA2006F, 5231JA2005A, 5231JA2005E, 5231JA2006B, 5231JA2006E, 1266885, 1268489, AP4457353, EAP2441842, and PS2441842. Check the label on the current filter to confirm the correct replacement before ordering.

How often should the Kenmore 9990 filter be replaced?

Every 6 months or 300 gallons, whichever comes first. If water taste changes or dispenser flow slows before the six month mark, replace sooner rather than waiting. The 300 gallon capacity means heavier-use households may hit the gallon limit before six months.

Is this filter sold as a single pack?

Yes. This listing covers the Kenmore 9990, 46-9990 Refrigerator Water Filter as a single pack. Check the product listing for multi-pack options if ordering replacements for an extended period.