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White cylindrical refrigerator filter cartridge with twist-lock end

Optostars

Optostars 9081 Refrigerator Filter Replacement

SKU CH-BB8N-N1W2M

Compatible refrigerator filter replacement for models 46-9081 and 46-9930 with tool-free twist-lock installation

  • Product typeRefrigerator parts
  • Tool-free twist-and-lock installation in seconds
  • Leak-free seal keeps water clean and dry
  • Compatible with 46-9081, 46-9930 and 9081 models
  • Fits WRS322FDAB, WRS325FDAB, WRS526SIAH, WRS537SIAB units
  • Replace every six months for fresh hydration

Direct-fit replacement filter

The Optostars 9081 cartridge replaces part numbers 46-9081, 46-9930, KAD1RXD1, P4RFWB, P8RFWB2L and PSA 2378001. It fits refrigerator models including W10295370, W10276924, W10291030, WRL767SIAM, WRS322FDAB, WRS325FDAB, WRS526SIAH and WRS537SIAB.

Six-month service interval

The twist-and-lock design seals without tools and runs silently. Replace the cartridge every six months to maintain consistent flow and prevent leaks during continuous household use.

Verify your refrigerator part number

Confirm the existing filter matches one of the listed part numbers before ordering. This cartridge is not suitable for refrigerators that require a different filter specification.

How it compares

Measured against everything we stock in Single & Multi-Bowl Sinks, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 70% of the 59 comparable items (median $29.99).

Specifications

Product
Product typeRefrigerator parts

Questions about this item

Does the Optostars 9081 filter make any noise or leak after months of daily use?

The filter is designed for silent, leak-free operation using a twist-and-lock seal that stays tight through six months of continuous service.

Which refrigerator models must I already own for this 9081 cartridge to fit?

It fits Whirlpool and compatible units including WRS322FDAB, WRS325FDAB, WRS526SIAH, WRS537SIAB, WRL767SIAM and part numbers 46-9930, 46-9081, P4RFWB, P8RFWB2L, PSA 2378001.

Will the 9081 replacement work in an older fridge that still uses the original 46-9930 filter housing?

Yes, the cartridge is a direct substitute for the 46-9930 and slides into the existing housing without any adapter or modification.

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