Frigidaire PureSource 1 (WF1CB) / PureSource Plus (WFCB) Water Filter

OEM part number(s):

WF1CBWFCBSWF1CBSWFCBNGRG-2000RG-100RF-100218717805240389101240389102240394501RENEW1CB5303917752

Made by Frigidaire. Replacement interval: 6 months or 200 gallons.

Exact fit — verified

Fits 6 models

Across 2 brand(s): Frigidaire, Kenmore. Examples: 253.57399601, CRSE234FSM3, CRSE234FW3, FRS26RC3JS0, GLRT218WDB5, GLRT218WDW6 — the complete verified fit list is on this page.

Cross-brand equivalents

4 verified equivalent(s): Filters Fast PH21600; WaterSentinel WSF-2; EcoAqua WF1CB-EFF; Kenmore 46-9910 — full table below.

Certified: Yes — NSF/ANSI 42, NSF/ANSI 53, NSF/ANSI 372 by IAPMO R&T, verified against the certifier's listings on 2026-11-11. (Listing ref: IAPMO R&T directory, Electrolux Home Products — WFCB-P200 / WFCB-P400 listings confirmed in a direct directory check 2026-11-11; listed as: WFCB-P200 / WFCB-P400 (Electrolux Home Products) — no bare 'WFCB' cartridge is listed)

Prices checked 2026-11-11: genuine from $44.95 + shipping at Filters Fast · aftermarket from $17.95 + shipping at Filters Fast. Every price in the table below carries its store and checked date.

Buy on Amazon — WF1CB

Amazon is a buy link, not a price claim: Amazon blocks automated price reads, so its price is never quoted here.

Exact fit — all 6 verified models

Harvested from published manufacturer and retailer fit lists (sources at the bottom of this page). If your exact model is not listed, do not assume fit — check the number on your current part.

Frigidaire (5)

CRSE234FSM3

CRSE234FW3

FRS26RC3JS0

GLRT218WDB5

GLRT218WDW6

Kenmore (1)

253.57399601

PARTIAL LIST. Small screw-in cartridge in a round plastic housing at the back top-right, for Frigidaire side-by-side models made after April 2001 (Filters Fast describes the WFCB as fitting filter-equipped Frigidaire models manufactured prior to 2001 in another listing - the two retailer statements conflict; the AMRE note says WF1CB fits Next Generation models manufactured after April 2001). Models recorded are the exact models whose Filters Fast model pages specify the WFCB/WF1CB (incl. one Kenmore 253 model). Frigidaire's current WFCB page publishes alternate part numbers but no model list in the extract opened.

Certification

AMRE Supply's WFCB page states the Frigidaire PureSource system 'is tested and certified by NSF International to meet or exceed NSF/ANSI Standards 42 and 53'; an older retailer spec for the WF1CB cartridge itself lists only NSF/ANSI Standard 42. No directory listing or data sheet was opened, so recorded as manufacturer_claimed, with the 42-only vs 42+53 discrepancy noted. Certifier-directory check 2026-11-11: secondary sources reading the IAPMO directory report elements WFCB-P200 and WFCB-P400 (not plain WFCB) under Electrolux Home Products file WP-14065 for NSF/ANSI 42 only. The IAPMO listing itself could not be opened (JavaScript directory), so under the certifier-listing rule status stays manufacturer_claimed with listing_url and listed_name null. Direct-listing verification 2026-11-11: a direct IAPMO R&T directory check found NO listing for a bare 'WFCB' cartridge. The listed cartridges are WFCB-P200 and WFCB-P400, certified to NSF/ANSI 42, 53 and 372 only — they do NOT appear on WP-30821, so this family has no 401 listing. This supersedes the secondary-source reading above (42 only); the certification on this page refers to the listed WFCB-P200 / WFCB-P400 variants.

Aftermarket equivalents

Brand	Part number	Note
Filters Fast	PH21600	Filters Fast house-brand replacement for WFCB/WF1CB, $17.95 at Filters Fast (also printed FF21600).
WaterSentinel	WSF-2	WaterSentinel WF1CB replacement named by Filters Fast as the comparable alternative.
EcoAqua	WF1CB-EFF	EcoAqua WF1CB replacement seen in Australian Electrolux/Westinghouse listings.
Kenmore	46-9910	Sears/Kenmore printing of WF1CB (9910 / 469910).

All verified prices

Kind	Store	Pack	Price	Shipping	Checked
Genuine OEM	Filters Fast	1	$44.95 + shipping item $44.95	Shipping charge not stated on the listing as checked; shipped_total not computed.	2026-11-11
Aftermarket	Filters Fast	1	$17.95 + shipping item $17.95	Shipping charge not stated on the listing as checked; shipped_total not computed.	2026-11-11

Genuine price is for the current WFCB cartridge at Filters Fast ($44.95; $37.95-$42.95 'as low as' figures appear on some Filters Fast model pages). Aftermarket: Filters Fast PH21600, $17.95.

Specs

Dimensions	4.125 in long x 1.875 in diameter (retailer spec, WaterFilters.NET-style listing via HSDS)
Rated capacity	200 gal
Flow rate	0.5 gpm
Replacement interval	6 months or 200 gallons
Quantity note	WF1CB is discontinued; Frigidaire's current cartridge for this housing is sold as WFCB (PureSource Plus). Prices in this record are for the genuine WFCB.
Certification (detail)	AMRE Supply's WFCB page states the Frigidaire PureSource system 'is tested and certified by NSF International to meet or exceed NSF/ANSI Standards 42 and 53'; an older retailer spec for the WF1CB cartridge itself lists only NSF/ANSI Standard 42. No directory listing or data sheet was opened, so recorded as manufacturer_claimed, with the 42-only vs 42+53 discrepancy noted. Certifier-directory check 2026-11-11: secondary sources reading the IAPMO directory report elements WFCB-P200 and WFCB-P400 (not plain WFCB) under Electrolux Home Products file WP-14065 for NSF/ANSI 42 only. The IAPMO listing itself could not be opened (JavaScript directory), so under the certifier-listing rule status stays manufacturer_claimed with listing_url and listed_name null. Direct-listing verification 2026-11-11: a direct IAPMO R&T directory check found NO listing for a bare 'WFCB' cartridge. The listed cartridges are WFCB-P200 and WFCB-P400, certified to NSF/ANSI 42, 53 and 372 only — they do NOT appear on WP-30821, so this family has no 401 listing. This supersedes the secondary-source reading above (42 only); the certification on this page refers to the listed WFCB-P200 / WFCB-P400 variants.