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FiltersFast FF21130 Replacement for WaterSentinel WSG-4


Retail: $29.95 /ea
You Save: 37%
Buy 1 - 2 for $26.95 ea.
Buy 3+ for $18.95 ea.
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Retail: $29.95
You Save: 10%

in stock
Ships by Monday 4/19/2021
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Product Information

Take an important step toward a healthy lifestyle with the FiltersFast FF21130. This efficient filter fits many French-door bottom freezer refrigerator models. It uses carbon block technology to reduce the taste and odor of chlorine, improving the clarity of your water and removing sediment. Replace your filter every 200 gallons or 6 months to maintain efficiency and performance. Enjoy the health benefits of fresh, purified water in your own home!

Note: The RPWFE is backward compatible and can be used in all refrigerator models that use the RPWF. However, if your refrigerator model requires the RPWFE specifically, you will not be able to use the RPWF, or any replacement for the RPWF.

The FF21130 is a FiltersFast brand product that is certified for NSF Standard 42, 53 and 401, which verifies that the product is made from safe and durable materials with claims backed by test data.


  • Brand: FiltersFast
  • Part Number: FF21130
  • Pack Size: 1
  • Filter Life (Months): 6
  • Filter Life (Gallons): 300
  • Filter Media: Coconut Carbon Block
  • Flow Rate: 0.5 GPM
  • Operating Pressure: 20 – 100 psi
  • Operating Temperature: 33 – 100 °F
  • NSF Certification(s): 42, 53, 401

Compatible Filter Models:

The FiltersFast FF21130 is the correct replacement for the following filter models:



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