# Culligan HF-360 and WH-HD200-C Replacement Filters: Which Cartridges Fit, and Cross-Fit Alternatives > The Culligan HF-360 takes 10 x 2.5 in cartridges (CW-MF, CW-F, P5); the WH-HD200-C takes 10 x 4.5 in (R50-BBSA, CW5-BBS, RFC-BBSA), 8,000 to 24,000 gallons each. | | | |---|---| | Source | https://ownerspec.com/water/parts/culligan-hf-360-wh-hd200-replacement-filters/ | | Publisher | OwnerSpec (https://ownerspec.com/) | | Published | 2026-09-12 | | Updated | 2026-09-12 | | Facts verified | 2026-09-12 | | Disclosure | Contains affiliate links. OwnerSpec may earn a commission at no cost to the reader. | --- ## Short answer The Culligan HF-360A and HF-360B take 10 x 2.5 in cartridges; the Culligan WH-HD200-C takes 10 x 4.5 in Big Blue cartridges, and neither fits the other. Culligan's 2011 HF-360A manual lists the CW-MF (30 micron), CW-F (10 micron), P5 (5 micron) and P1 (1 micron) for the HF-360, at 2 to 4 months each with one month counted as about 4,000 gallons. Culligan's WH-HD200-C page lists the R50-BBSA (50 micron, 24,000 gallons or 6 months), the CW5-BBS (5 micron, 16,000 gallons or 4 months) and the RFC-BBSA (25 micron carbon, 10,000 gallons or 3 months). Any standard 10 x 2.5 in cartridge such as the iSpring FP15 fits the HF-360, and any standard 10 x 4.5 in cartridge (Pentek DGD-2501, iSpring FP15B, Pureplus PPL10BB-01) fits the WH-HD200-C. The one spec that must match is the cartridge size: both housings run 30 to 125 psi and 40 to 100 F whichever cartridge is fitted. ## Fact sheet - **Answer:** The Culligan WH-HD200-C takes 10 x 4.5 in Big Blue cartridges: the R50-BBSA (50 micron, 24,000 gallons or 6 months), the CW5-BBS (5 micron, 16,000 gallons or 4 months) and the RFC-BBSA (25 micron carbon, 10,000 gallons or 3 months). The HF-360 takes 10 x 2.5 in cartridges instead, and the two housings do not interchange. - **Applies to:** WH-HD200-C; HF-360 - **Compatibility basis:** Culligan's WH-HD200-C and HF-360A product and cartridge pages, and the 2011 HF-360A Installation and Operating Instructions manual - **Assumptions:** Figures here are Culligan's current product-page numbers; the 2011 HF-360A manual gives different capacity and flow figures for the same CW-MF and CW-F cartridges.; Cross-fit cartridges (Pentek DGD-2501, iSpring FP15/FP15B, Pureplus PPL10BB-01) match on nominal size only, since Pentair's and iSpring's own spec pages did not render for this page and the figures used are listing copy. - **Method:** Part numbers, sizes, micron ratings and intervals taken directly from Culligan's current product pages for each cartridge, cross-checked against the 2011 HF-360A manual and the Amazon listings for the same SKUs. - **Primary source:** [Culligan DIY, WH-HD200-C Heavy-Duty Sediment Filter Housing product page](https://culligandiy.com/products/wh-hd200-c-sediment-heavy-duty-filter-housing) (manufacturer or vendor document) - **Facts verified:** 2026-09-12 - **Last updated:** 2026-09-12 - **Canonical URL (cite this):** https://ownerspec.com/water/parts/culligan-hf-360-wh-hd200-replacement-filters/ The spec people get wrong is the diameter, not the length: both housings take a 10 in cartridge, and only one of them takes a 4.5 in one. ## Which cartridges fit the HF-360 and the WH-HD200-C? The two housings share a cartridge length and nothing else. Culligan's 2011 HF-360A manual gives the HF-360 3/4 in ports and a 10 x 2.5 in cartridge; Culligan's WH-HD200-C page gives 1 in ports, a 4.5 in cartridge and up to 10 GPM. Amazon sells the smaller housing as HF-360A/HF-360B; the manual's cartridge table covers both. | Part | Fits | Size | Rating (Culligan's published figures) | Link | |---|---|---|---|---| | Culligan CW-MF | HF-360A/B, coarse sediment | 10 x 2.5 in | 30 micron cord-wound; 12,000 gallons or 3 months; 4 GPM (product page; the 2011 manual says 4 months and 6.5 GPM) | Culligan CW-MF | | Culligan CW-F | HF-360A/B, general sediment | 10 x 2.5 in | 10 micron cord-wound; 12,000 gallons per the current listing (the 2011 manual says 2 months, about 8,000 gallons) | Culligan CW-F, 2-pack | | Culligan P5 | HF-360A/B, fine silt | 10 x 2.5 in | 5 micron spun polypropylene; 8,000 gallons or 2 months; 4 GPM (manual and product page agree) | Culligan P5, 4-pack | | Culligan P1 | HF-360A/B, finest | 10 x 2.5 in | 1 micron; 2 months; 1.5 GPM (2011 manual) | Not linked: no listing was opened | | Culligan R50-BBSA | WH-HD200-C, grit | 10 x 4.5 in | 50 micron pleated; 24,000 gallons or 6 months; 10 GPM | Culligan R50-BBSA, 3-pack | | Culligan CW5-BBS | WH-HD200-C, fine silt | 10 x 4.5 in | 5 micron cord-wound; 16,000 gallons or 4 months; 8 GPM | Culligan CW5-BBS | | Culligan RFC-BBSA | WH-HD200-C, sediment plus chlorine taste and odor | 10 x 4.5 in | 25 micron radial-flow carbon; 10,000 gallons or 3 months; 3 GPM (the product page also prints 8 GPM; Culligan's own Q&A answer and the listing say 3) | Culligan RFC-BBSA | | Culligan CW25-BBS | WH-HD200-C | 10 x 4.5 in | Named as compatible on Culligan's housing page; no spec page was opened | Not linked | The working window is the same for both housings: 30 to 125 psi and 40 to 100 F, from the HF-360A manual and the WH-HD200-C page. The warranties differ: 5 years on the HF-360 housing, 2 years on the WH-HD200-C, and neither covers cartridges. The HF-360A manual also says to replace the plastic bottom every 5 years if it is clear and every 10 years if it is opaque. ## What else fits the same housings? The only fit spec Culligan publishes is the nominal size, so any standard 10 x 2.5 in cartridge goes into the HF-360 and any standard 10 x 4.5 in Big Blue cartridge goes into the WH-HD200-C. Pentair's and iSpring's own spec pages would not render for this page, so the figures below are listing copy. | Alternative | Fits | Same size? | Rating (source) | What differs from the Culligan part | |---|---|---|---|---| | iSpring FP15 | HF-360A/B | 10 x 2.5 in, yes | 5 micron multi-layer; 15,000 gallons; listing title says NSF certified with no standard number | Replaces the P5 at the same 5 micron with nearly twice the rated gallons | | Pentek DGD-2501 | WH-HD200-C | 10 x 4.5 in, yes | Dual-gradient polypropylene, 25 micron outer and 1 micron inner (listing and resellers) | Finer than anything Culligan lists for this housing. Buy only the Pentair-branded listing: a COONOOL look-alike is 1/4 in longer per a verified-purchase review and did not seal | | iSpring FP15B | WH-HD200-C | 10 x 4.5 in, yes | 5 micron polypropylene (listing) | Replaces the CW5-BBS; no capacity figure on the listing title | | Pureplus PPL10BB-01, 2-pack | WH-HD200-C | 10 x 4.5 in, yes | 1 micron pleated; listing names the R50-BBSA as the part it replaces | 50 times finer than the R50-BBSA it is sold against; the listing states no flow rate | Aquaboon sells both sizes, but no Aquaboon listing was verified for this page, so none is linked. The 20 in version of the 4.5 in size is covered on the [iSpring WGB32B replacement filters](/water/parts/ispring-wgb32b-replacement-filters/) page. NSF's standards page defines NSF/ANSI 42 as the aesthetic-effects standard (chlorine, taste and odor, particulate, iron, manganese, TDS) and NSF/ANSI 53 as the health-effects standard. The HF-360A manual says WQA tested the housing against NSF/ANSI 42 for materials and structural integrity only, and the WH-HD200-C page says WQA and IAPMO certified structural integrity. Neither is a contaminant-reduction claim for any cartridge. ## How often do they need replacing? Culligan's month figures are approximations of the gallon figures: the HF-360A manual states one month as about 4,000 gallons, with flow rates measured at 60 psi. A P5 is therefore 8,000 gallons, an R50-BBSA 24,000 gallons, and the household's water use decides which arrives first. The flow ceiling is the other limit. Culligan rates the RFC-BBSA at 3 GPM against 10 GPM for the housing, so a carbon cartridge in a WH-HD200-C caps the whole house at the cartridge's figure. The [whole house filter flow rate calculator](/water/calculators/whole-house-filter-flow-rate-calculator/) turns fixtures into GPM to check against that 3 GPM. The housing itself has a documented history. Culligan's own WH-HD200-C store page carries 10 reviews averaging 1.5 out of 5, and its Amazon listing (4.4 stars over 3,791 ratings) carries reviews of the housing cracking at the seam after 2 to 3 years and of the bypass valve seizing. Those are owner reports, not a test. **Which cartridge to buy** Culligan's own sheets do not agree with each other: the CW-F page carries the P5's spec table, the RFC-BBSA page prints two flow rates, and the CW-F and CW-MF gallon figures moved between the 2011 manual and today's listings. The figures above are the ones the current pages and the manual agree on. For the HF-360, fit a P5 for 5 micron or a CW-F for 10 micron. For the WH-HD200-C, fit an R50-BBSA if the complaint is grit and pressure and a CW5-BBS if it is fine silt. Skip all of them if the well runs orange or black: EPA's secondary standards for iron (0.3 mg/L) and manganese (0.05 mg/L) are not sediment problems, and the [iron in well water](/water/guides/iron-in-well-water/) and [manganese black stains](/water/guides/manganese-black-stains-well-water/) guides carry those limits. Skip the 1 micron DGD-2501 and PPL10BB-01 if pressure drop is the complaint. ## The picks - **Culligan P5**: HF-360, 5 micron: the OEM part every source agrees on (10 x 2.5 in spun polypropylene, 5 micron; 8,000 gallons or 2 months; 4 GPM; 4-pack) Amazon: https://www.amazon.com/dp/B08223KT82/?tag=ownerspec-20 - **Culligan CW-F**: HF-360, 10 micron: the OEM cord-wound part (10 x 2.5 in cord-wound polypropylene, 10 micron; 12,000 gallons per the current listing; 2-pack) Amazon: https://www.amazon.com/dp/B0001YLJBY/?tag=ownerspec-20 - **Culligan R50-BBSA**: WH-HD200-C, grit and pressure: the longest-lived OEM part (10 x 4.5 in pleated, 50 micron; 24,000 gallons or 6 months; 10 GPM; 3-pack) Amazon: https://www.amazon.com/dp/B07K1NYTNQ/?tag=ownerspec-20 - **Culligan CW5-BBS**: WH-HD200-C, fine silt: the OEM 5 micron part (10 x 4.5 in cord-wound, 5 micron; 16,000 gallons or 4 months; 8 GPM; single cartridge) Amazon: https://www.amazon.com/dp/B005570K30/?tag=ownerspec-20 - **Pentek DGD-2501**: WH-HD200-C cross-fit, finest rating on the page (10 x 4.5 in dual-gradient polypropylene, 25 micron outer and 1 micron inner; genuine Pentair listing, pack of 1) Amazon: https://www.amazon.com/dp/B0014C09XG/?tag=ownerspec-20 - **iSpring FP15**: HF-360 cross-fit with a higher rated capacity (10 x 2.5 in multi-layer, 5 micron; 15,000 gallons per the listing) Amazon: https://www.amazon.com/dp/B01FH8SHJK/?tag=ownerspec-20 ## Frequently asked questions ### Does the Culligan CW5-BBS fit the HF-360 housing? No. Culligan's CW5-BBS product page lists it as a 4.5 in diameter heavy-duty cartridge for the WH-HD200-C and HD-950A housings. The HF-360A manual's cartridge selection guide names only 10 x 2.5 in cartridges for that housing: CW-MF at 30 micron, CW-F at 10 micron, P5 at 5 micron and P1 at 1 micron. The two housings share a 10 in length and nothing else. ### Why do the CW-F and CW-MF gallon figures differ between the manual and the listing? Culligan's 2011 HF-360A manual rates the CW-F at 2 months and the CW-MF at 4 months, with one month counted as about 4,000 gallons. Culligan's current product pages and Amazon listings rate both at 12,000 gallons or 3 months. The micron ratings agree in every source; only the life figures drifted, and Culligan does not say why. This page uses the current figures. ### What is the real flow rate of the Culligan RFC-BBSA carbon cartridge? 3 GPM. Culligan's RFC-BBSA product page prints 8 GPM in its description, but a Culligan customer-service answer on the same page corrects it to 3 GPM, and the current Amazon listing title also states 3 GPM. That is the lowest flow figure of any cartridge Culligan lists for the WH-HD200-C, against 10 GPM for the R50-BBSA and 8 GPM for the CW5-BBS. ### Which 10 x 4.5 in cartridges fit the WH-HD200-C besides Culligan's own? Any standard 10 x 4.5 in Big Blue cartridge. The listings opened for this page were the Pentair Pentek DGD-2501 (dual-gradient, 25 micron outer and 1 micron inner), the iSpring FP15B (5 micron polypropylene) and the Pureplus PPL10BB-01 (1 micron pleated, 2-pack), whose title names the Culligan R50-BBSA as the part it replaces. Size is the only fit spec; micron rating and capacity change with each one. ### Is the Pentek DGD-2501 on Amazon always the genuine Pentair part? No. A look-alike listing under the COONOOL brand uses the DGD-2501 name and packaging, and a verified-purchase review on it reports the cartridge is 9 7/8 in long against the genuine Pentek's 9 5/8 in, so it does not seal in the housing and leaks. The genuine Pentair Pentek listing is ASIN B0014C09XG; check the brand line before buying. ## Sources - [Culligan HF-360A Installation and Operating Instructions, Rev A, July 2011 (PDF)](https://cdn.shopify.com/s/files/1/0531/5585/6541/files/HF-360A_Manual_Rev_A_7-2011.pdf?v=1628281414) (manufacturer or vendor document) - [Culligan DIY, WH-HD200-C Heavy-Duty Sediment Filter Housing product page](https://culligandiy.com/products/wh-hd200-c-sediment-heavy-duty-filter-housing) (manufacturer or vendor document) - [Culligan DIY, CW5-BBS 5 micron replacement cartridge product page](https://culligandiy.com/products/cw5-bbs-5-micron-replacement-cartridge) (manufacturer or vendor document) - [Culligan DIY, R50-BBSA heavy-duty pleated replacement cartridge product page](https://culligandiy.com/products/r50-bbsa-heavy-duty-replacement-cartridge) (manufacturer or vendor document) - [Culligan DIY, RFC-BBSA heavy-duty carbon replacement cartridge product page](https://culligandiy.com/products/rfc-bbsa-heavy-duty-carbon-replacement-cartridge) (manufacturer or vendor document) - [Culligan DIY, CW-F 10 micron replacement cartridge product page (description text only; the page's spec table repeats the P5 figures)](https://culligandiy.com/products/cw-f-10-micron-replacement-cartridge) (manufacturer or vendor document) - [Culligan DIY, CW-MF 30 micron replacement cartridge product page](https://culligandiy.com/products/cw-mf-30-micron-replacement-cartridge) (manufacturer or vendor document) - [Culligan DIY, P5 5 micron replacement cartridge product page](https://culligandiy.com/products/p5-5-micron-replacement-cartridge) (manufacturer or vendor document) - [US EPA, Secondary Drinking Water Standards: Guidance for Nuisance Chemicals](https://www.epa.gov/sdwa/secondary-drinking-water-standards-guidance-nuisance-chemicals) (government or regulatory source) - [NSF, NSF/ANSI 42, 53 and 401: Filtration Systems Standards](https://www.nsf.org/knowledge-library/nsf-ansi-42-53-and-401-filtration-systems-standards) (standards or certification body) - [Amazon listing B01JIRLRXY, Culligan WH-HD200-C housing (listing copy only: compatible cartridges, review reports)](https://www.amazon.com/dp/B01JIRLRXY) (retailer listing or retailer-hosted document) - [Amazon listing B000BQUPZ8, Culligan HF-360A/HF-360B housing (listing copy only)](https://www.amazon.com/dp/B000BQUPZ8) (retailer listing or retailer-hosted document) - [Amazon listing B005570K30, Culligan CW5-BBS (listing copy only)](https://www.amazon.com/dp/B005570K30) (retailer listing or retailer-hosted document) - [Amazon listing B07K1NYTNQ, Culligan R50-BBSA 3-pack (listing copy only)](https://www.amazon.com/dp/B07K1NYTNQ) (retailer listing or retailer-hosted document) - [Amazon listing B000BQN6MM, Culligan RFC-BBSA (listing copy only: 3 GPM)](https://www.amazon.com/dp/B000BQN6MM) (retailer listing or retailer-hosted document) - [Amazon listing B0001YLJBY, Culligan CW-F 2-pack (listing copy only: 12,000 gallons)](https://www.amazon.com/dp/B0001YLJBY) (retailer listing or retailer-hosted document) - [Amazon listing B000BQRIL2, Culligan CW-MF (listing copy only)](https://www.amazon.com/dp/B000BQRIL2) (retailer listing or retailer-hosted document) - [Amazon listing B08223KT82, Culligan P5 4-pack (listing copy only)](https://www.amazon.com/dp/B08223KT82) (retailer listing or retailer-hosted document) - [Amazon listing B0014C09XG, Pentair Pentek DGD-2501 (listing copy only: Pentair's own page did not render)](https://www.amazon.com/dp/B0014C09XG) (retailer listing or retailer-hosted document) - [Amazon listing B01LZELKLQ, iSpring FP15B (listing copy only: iSpring's own page blocked reading)](https://www.amazon.com/dp/B01LZELKLQ) (retailer listing or retailer-hosted document) - [Amazon listing B01FH8SHJK, iSpring FP15 (listing copy only)](https://www.amazon.com/dp/B01FH8SHJK) (retailer listing or retailer-hosted document) - [Amazon listing B0GGRX92KP, Pureplus PPL10BB-01 2-pack (listing copy only)](https://www.amazon.com/dp/B0GGRX92KP) (retailer listing or retailer-hosted document) - [Amazon listing B0FXBD8K6Y, COONOOL look-alike of the DGD-2501 (cautionary: not linked in the page, review report on length)](https://www.amazon.com/dp/B0FXBD8K6Y) (retailer listing or retailer-hosted document) --- Citation: OwnerSpec, "Culligan HF-360 and WH-HD200-C Replacement Filters: Which Cartridges Fit, and Cross-Fit Alternatives", https://ownerspec.com/water/parts/culligan-hf-360-wh-hd200-replacement-filters/, facts verified 12 September 2026. 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