Save an EXTRA 10% on Systems + 15% on Cartridges with Auto-Ship   |   FREE Shipping! (Contiguous US Orders)

Auto-Ship Savings   |   FREE Shipping! (Contiguous US)

WaterChef WCG-18 Premium Refrigerator Water Filter Cartridge

Replacement for GE: MSWF, 101820A, 101821B, WR02X12345, WR02X12801 Refrigerator Filters
Product Image
Retail $25.99
SALE $9.95
(You save $16.04 )


Retail $25.99
SALE $9.95
(You save $16.04 )


FREE Shipping + 60-Day FREE Returns! (Contiguous US)

Product Highlights

  • High Purity, Activated Coconut Shell Carbon Block
  • Testd & Certified for NSF/ANSI Standard 42
  • 300 Gallon / 6 Month Capacity
  • 0.5 GPM Flow Rate
  • Quick & Easy Filter Cartridge Replacement


WaterChef® Premium Refrigerator Filter Cartridges

Great Tasting Water from Your Refrigerator

WaterChef® Premium Refrigerator Water Filters provide you and your family with great tasting water from your refrigerator for a fraction of the cost of OEM fridge filters!

WaterChef Premium Refrigerator Filter Replacement Cartridges utilize high purity, activated carbon block technology and have a capacity of 300 gallons or 6 months per cartridge under typical water quality and usage conditions.

The WaterChef WCG-18 Premium Refrigerator Water Filter replaces the following refrigerator filters: GE: MSWF, 101820A, 101821B, WR02X12345, WR02X12801



Superior Chlorine Reduction over the Life of the Cartridge
Certified Capacity for a Single Cartridge
Fridge Filtration at a Fraction of the Cost of OEM Filters

Based on testing data with typical water contitions. Actual performance may vary.

This refrigerator filter works the same as my original filter did for so much less. I will definitely be ordering my filters from WaterChef in the future!



Discover the Difference


  • Superior Chlorine Reduction & Taste
  • Low Cost per Gallon (Filter more. Spend less!)
  • 300 Gallon or 6 Month Rated Capacity
  • Tested & Certified - NSF/ANSI Standard 42 (Trusted performance.)
  • Beneficial Minerals Pass Through Freely
  • BPA Free
  • Quick and Easily Install (No tools needed!)
  • Additional 15% OFF with Auto-Ship! (contiguous U.S.)
  • FREE SHIPPING & RETURNS! (contiguous U.S.)
  • 5-Star Customer Care! (We stand behind our products AND our customers!)



Because the Details Matter

  • WaterChef® WCG-18

  • Refrigerator

  • 300 Gal. or up to 6 Months

  • High Purity, Activated Carbon Block

  • NSF/ANSI Standard 42 for Chlorine Reduction, Material Safety & Structural Integrity

  • GE: MSWF, 101820A, 101821B, WR02X12345, WR02X12801

  • 40 psig - 120 psig

  • 34º F - 100º F (1º C - 38º C)

  • 0.5 gal/min (1.89 L/min)

  • Yes



What Our Customers Are Saying




Have an Additional Question? Just Ask Us.  

The WaterChef WCG-18 refrigerator filter has a certified capacity of 300 gallons or up to 6 months under typical usage and water conditions.

Every filter has a limited amount of capacity for contaminant reduction. Even though water is still flowing through it and may still taste fresh, there comes a point when it is no longer providing the performance it had when new. Therefore, it is important to change the filter on time to get the best performance from it. There is nothing wrong with changing it ahead of time if you notice a return of off taste or odor similar to the tap water. A sudden or temporary change may be normal with seasonal factors or activities of the municipal water provider.

NO. Beneficial minerals (such as calcium and magnesium) pass freely through the filter, leaving you with water that is both great tasting and naturally balanced.

NO. TDS is a poor measure of water quality. TDS in drinking water is usually attributed to the amount of calcium, potassium, and magnesium that is present in your water supply. These are beneficial minerals that are known to support good health. WaterChef systems have been specifically designed to reduce unwanted contaminants while leaving these beneficial minerals in.

Trusted Water Filtration

Superior quality and performance, backed by independent validation.

  • Water Quality
  • WQ Member
  • Planet
  • Made In USA
auto ship modal
  • 10% OFF Filtration Systems with Auto-Ship
  • 15% OFF Filter Cartridges with Auto-Ship
  • 15% OFF Auto-Shipped Replacement Cartridges
  • FREE Shipping on ALL Auto-Ship Orders

With Auto-Ship, your replacement cartridges are delivered right to your door, when you need them. Simply adjust your next refill date or change your refill frequency to fit your needs.

Absolutely no contracts or fees – cancel anytime! You’re only billed when an order ships.