By PureLine



Part # PL0120

Manufacturer Code R173576

Dimensions End Cap = Round, Length = 26 1/16", Outside Diameter = 7", Inside Diameter = 3"

Alternate Part #'s 20503, 817-0106, C-7471, C7471, FC-1977, FC1977, NFC1977, PCC105, R173576, XLS-718

Product Description

PureLine Aftermarket Replacement Cartridge for Waterway® Crystal Water 425 SQ. FT.  and Pentair® Clean & Clear Plus® CCP420 Filters

Is your pool water starting to look a little dull? Is your pressure gauge reading a higher PSI than normal? Are your pool jets a little less powerful? These are all signs that it is time to replace your pool filter cartridge. Replace your pool filter cartridge today and regain that crystal clear pool water and extend the life of your pool pump.

Typically for single cartridge pool filters we suggest replacing your cartridge every 6-12 months and for filters which take multiple cartridges, we suggest replacing your cartridges every 3 years.

This Cartridge is Commonly Used In

PureLine Cartridge Benefits

  • Less expensive than the original manufacturer with the same high-quality standards
  • Designed for maximum water flow to extend cartridge life
  • Designed for even dirt distribution resulting in increased water flow
  • Increased flow rates results in less wear on pump & reduced energy usage
  • Banded Pleats reduce frequency of cartridge cleaning

Not Your Cartridge?

Is this not your Cartridge? Don't worry, we carry thousands of Pool Filter Replacement Cartridges to replace all of the most popular OEM brands such as Sta-Rite®, Pentair® / Pac Fab®, Hayward®, Purex®, American Products®, Jacuzzi®, Hot Springs®, Coleman®, and more. Click here for more Pool Filter Replacement Cartridges


All manufacturers’ names, brand names, trademarks, images, symbols, descriptions, and part numbers are used herein for reference purposes only.

Top End Cap Top End Cap
Bottom End Cap Bottom End Cap

Product Specifications

Filter Model:
Pentair® Clean & Clear Plus® 420, Quantum 420
Filtration Area:
105 sq. ft.
26 in.
7 in.
Top Inside Diameter:
Bottom Inside Diameter:
Top Style:
Bottom Style:
Media Weight:
4 oz.
Unicel #:
Filbur #:
Pleatco #:

?     Asked on 5/24/2015by Inyo Visitor

Is this 105 generic cartridge the same as mod. no. ccp420 (160301)?

A  Answered on 5/24/2015 by InyoPools Product Specialist Patrick P.

Yes this is the gneric replacement cartridge for the Pentair Clean & Clear Plus 420 Filter (CCP420 - Model # 160301). The CCP420 use 4 cartridges and this is for one cartridge.

?     Asked on 8/18/2015by DEE

how can I find out the part number or filter that I need for my system?

A  Answered on 8/19/2015 by InyoPools Product Specialist Lennox H.

Hi Dee, On the outside of the filter canister would have a sticker that have the Manufacture info, operating specs and the model of the filter. You can find out by that model number.

?     Asked on 6/11/2016by rmw

is this a replacement for Pentair 173578?

A  Answered on 6/12/2016 by InyoPools Product Specialist Patrick P.

The Pentair 173578 is a replacement cartridge for the Clean and Clear Plus 520 and this cartridge is the replacement for the Clean and Clear Plus 420. You would require this PL0121 Clean and Clear Plus 520 Replacement Cartridge.

?     Asked on 7/6/2016by Jerry

Does this cartridge replace the Pentair cartridge with the following number: Pin 178585 or R 173576? Other markings on the cartridges needing replacement are as follows: Normal Pore size 10 Micron, 32.06 long 130 Sq. ft.

A  Answered on 7/6/2016 by InyoPools Product Specialist Alan M.

The number 178585 references to the Pentair Clean & Clear Model 520. That cartridge filter uses the Pentair Clean & Clear Plus 520 Sq. Ft. Replacement Cartridge.

?     Asked on 7/7/2016by Inyo Visitor

I have fc 1977 P clean filters. What is the micron size of these cartridges?

A  Answered on 7/14/2016 by InyoPools Product Specialist Lennox H.

Hi, These filters are rated at 15-20 microns.


Est. Repair Time

1 to 2 hrs

Tools Needed

Adjustable Wrench

My pool pump was making a lot of noise.

Written on 8/24/2020 by Guest

I relieved the pressure of pool pump and washed the cartridge filters off, put the system back together and turned the pump back on, and that relieved the pump of no more noise.

Were these instructions helpful? 


Est. Repair Time

Less than 1 hr

Tools Needed

Socket Set, Adjustable Wrench

Two of my filters would not come clean, they kind of looked like they had rust on them

Written on 8/22/2019 by Guest

I turned the pump off, let the air out and unscrewed the band, lifted the lid and took two of the filters out and replaced them with my new filters. I then put the lid back on, tightened the band, turned the pump on let the air out and the pressure on the pump was at a steady mark.

Were these instructions helpful? 


Est. Repair Time

Less than 1 hr

Tools Needed

Adjustable Wrench

Cartridge Filter Replacement

Written on 7/16/2019 by Guest

These replacement cartridges are an excellent fit.

Replaced them as a set of 4 and they have performed very well through a half-season of pool filtering. I have cleaned them multiple times and they still appear as new. Outstanding so far. Highly recommend this brand and Inyo pools as the vendor.

Were these instructions helpful? 


Est. Repair Time

Less than 1 hr

Tools Needed

Socket Set

Pool Filtration System was weak, high filter pressure

Written on 5/25/2018 by Guest

I noticed the cartridges in my filter were broken and referenced Inyo pools help site. I was able to diagnose the cartridges as being the problem for weak filtration and high filter pressure. Easy to replace the cartridges and the system is running great!

Were these instructions helpful? 


Est. Repair Time

Less than 1 hr

Tools Needed

Screwdriver, Wrench Set

2     0

Low pressure and old filters started to collapse

Written on 3/24/2017 by Guest

First shut off power to pumps
Then drain tank
Turn relief valve to depressurization system
Take off safety band with 7/8 box end wrench
Remove lid
Remove manifold
Remove old filters
Clean basin with water from garden hose
Install new 105 filters and reverse procedure
Install manifold
Close The drain valve
Fill with water from hose
Install lid
Tighten band
Close relief valve
Turn power on
Start pump
Smile because new filters are working
Smile you saved money with inyopool parts
Jump in and enjoy!

Were these instructions helpful? 


Review Summary

 (Average 4.67  out of 5 stars)
18 Rating
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