WP.PNC1977-4P Replacement Cartridge | Pentair Clean & Clear Plus 420 Filter
WP.PNC1977-4P Replacement Cartridge | Pentair Clean & Clear Plus 420 Filter
Featuring the best replacement cartridge for Pentair Clean & Clear Plus 420 and Waterway Crystal Water Filters. Specifically, the WP.PNC1977-4P Replacement Cartridge delivers complete OEM fit and quality. Shasta Pool Supply (SPS) offers top of the line made in the U.S.A. replacement filters with fast 2-day shipping.
WP.PNC1977-4P Replacement Cartridge
Upgrade your pool's filtration system with the WP.PNC1977-4P Replacement Cartridge, designed for Pentair Clean & Clear Plus 420 and Waterway Crystal Water Filters. Additionally this high-performance cartridge ensures crystal-clear water and effortless maintenance for your swimming pool.







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Key Features
- Large filter area for increased dirt capacity
- Continuous High Flow Internal Air Relief
- Balanced hydraulic flow for optimal performance
- Durable construction with injection-molded core
- Compatible with popular filter models
Technical Specifications
Enjoy hassle-free pool maintenance with this cartridge filter. Altogether, its
design eliminates the need for backwashing, saving you time and effort.
The 100% drain clean-out port allows for quick and efficient cleaning
when needed.
Invest in the WP.PNC1977-4P Replacement Cartridge for superior pool filtration and
enjoy a cleaner, clearer swimming experiences all season long.
Specs
- Part Number: WP.PNC1977-4P
- Length: 15.0
- Width: 15.0
- Height: 27.5

SHASTA CARTRIDGES
Compatibility
This replacement cartridge is specifically designed for Pentair Clean & Clear Plus 420 and Waterway Crystal Water Filters. It's also compatible with generic options such as Pleatco PCC105, Unicel C-7471, and Filbur FC-1977.
Invest in the WP.PNC1977-4P Replacement Cartridge for superior pool filtration and enjoy a cleaner, clearer swimming experiences all season long.

Reduce Replacement Frequency
Superior Filtration Technology
The WP.PNC1977-4P cartridge utilizes advanced filtration technology, featuring a nonwoven, polyester construction that effectively traps debris and contaminants. Therefore, Its large filter area ensures a longer cleaning cycle, reducing the frequency of replacements.
Durable and Reliable
Crafted with a robust injection-molded core made from 100% virgin ABS or PP, this cartridge offers exceptional durability and resistance to chemical deterioration. In addition, the strong core is wrapped with high-filament count spunbond polyester, ensuring consistent performance throughout its lifespan.
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What our customers are saying
Shopping with Shasta was an excellent experience. I followed a link from an email from Shasta for a salt cell for my pool, which I needed. They advertised an open box deal which was hundres of dollars less expensive than anywhere else I could find the equivalent part for online.
I accidentlh placed an order for the part to pick up at the wrong location. Communicating through email, Zachary and Chuck quickly resolved the problem and changed the location to the location closer to my home.
I've also shopped for pool deck paint from Shasta. Not only was the price better than anywhere else I could find online, the product was available quickly from my store.
Shopping with Shasta was an excellent experience. I followed a link from an email from Shasta for a salt cell for my pool, which I needed. They advertised an open box deal which was hundres of dollars less expensive than anywhere else I could find the equivalent part for online.
I accidentlh placed an order for the part to pick up at the wrong location. Communicating through email, Zachary and Chuck quickly resolved the problem and changed the location to the location closer to my home.
I've also shopped for pool deck paint from Shasta. Not only was the price better than anywhere else I could find online, the product was available quickly from my store.
GLENN S
Order was easy to place and was received in a very timely manner. Very satisfied with the experience.
Order was easy to place and was received in a very timely manner. Very satisfied with the experience.
Jacob V.
When it comes to finding pool parts at the best price and availability, TS Pool Supply has not disappointed. I was able to get an actuator at a great price, and recently got a new salt cell at the MSRP price but as quickly as the next day picking it up from their north location in Surprise. I appreciate having TS Pool Supply as an option for getting pool supplies when I need them.
When it comes to finding pool parts at the best price and availability, TS Pool Supply has not disappointed. I was able to get an actuator at a great price, and recently got a new salt cell at the MSRP price but as quickly as the next day picking it up from their north location in Surprise. I appreciate having TS Pool Supply as an option for getting pool supplies when I need them.
Quintus S.
FAQ
Our expert staff answers customer's most asked questions.
How frequently should I clean my filter cartridges?
The cleaning frequency is contingent on your filter's size. As a general guideline, initiate the cleaning process when the filter pressure exceeds the initial pressure by 10 psi. This ensures optimal filtration efficiency.
What is the recommended duration for running my pool equipment?
There isn't a specific timeframe, but it's essential to complete a full water turnover within a 24-hour period. Utilizing pool equipment during off-peak hours can be cost-effective.
Do you offer warranties?
Yes. We offer extended warranties at check-out.
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