Pentair
Pentair OEM CNC Plus 240 Cartridge, 4 Pack
Best replacement filter set for Clean and Clear Plus system owners.
Keep your pool water crystal clear with the Pentair OEM CNC Plus 240 Cartridge, sold in a convenient 4-pack. These genuine Pentair replacement cartridges are specifically engineered for the Clean and Clear Plus Filter system, ensuring a perfect fit and optimal filtration performance. Rigorously factory tested and certified to NSF/ANSI Standard 50, they guarantee exceptional water safety and quality compliance. Experience extreme quality and reliable filtration that keeps your pool pristine all season long.
$180.00
Owner Satisfaction
4.6
/ 5
Category Rank
96
/ 1449
#96 in Pool & Spa Filters
Price vs Category Average
+15%
Above average
Filter Area
240
/ SqFt
Who it's for
- Pool owners prioritizing guaranteed compatibility and reliable filtration
- Budget-conscious buyers seeking long-term savings through bulk purchasing
- Homeowners demanding crystal-clear water through superior debris filtration
Who should skip it
- Shoppers restricted by limited upfront maintenance budgets
- Busy pool owners wanting a low-maintenance filtration system
- Homeowners with limited utility or garage storage space
Performance breakdown
Filtration Precision
NSF/ANSI 50 certification ensures industry-leading debris capture and water clarity.
Build Integrity
Durable ABS plastic cores prevent collapse under high-pressure pool pump cycles.
System Compatibility
Engineered specifically for Clean and Clear Plus systems for seamless installation.
Material Longevity
High-grade polyester media resists tearing and maintains structural shape over time.
Maintenance Efficiency
Four-pack configuration simplifies seasonal replacement and reduces total system downtime.
Seal Reliability
Nitrile rubber gaskets provide a leak-free fit for optimal hydraulic performance.
Key Specs
Filter Area
240 SqFt
Quantity
4 Pack
Model Number
R173572
Type
OEM Cartridge
Certification
NSF/ANSI Standard 50
End Cap Type
Open Hole
Application Type
In Ground Pool
Filter Material
Polyester
Features
- Genuine Pentair OEM quality
- Includes four high-capacity cartridges
- Certified to NSF/ANSI Standard 50
- Factory tested for superior performance
- Designed for Clean and Clear Plus systems
- Ensures optimal water safety compliance
What customers say
Customers overwhelmingly praise the superior filtration and immediate water clarity provided by these genuine OEM cartridges. Satisfaction centers on the reliability and perfect fit, which eliminates issues common with generic alternatives like poor sealing or early failure. While the initial investment is notably higher, long-term owners find the consistent performance and longevity justify the premium cost for hassle-free pool maintenance. The convenience of the four pack is also appreciated. Despite the high price being a point of friction for some, the consensus confirms these cartridges are the gold standard for compatible Pentair systems, delivering expected premium results where performance outweighs cost concerns for most dedicated users.
Know before you buy
These cartridges are specifically engineered for the Clean and Clear Plus 240 system. Please verify your filter model number to ensure it matches the R173572 specification before purchasing.
OEM cartridges are manufactured by Pentair to meet exact factory specifications, ensuring a secure seal and proper flow rates. Using genuine parts helps maintain your system's performance and ensures compliance with NSF/ANSI Standard 50.
This 4-pack provides a combined total of 240 square feet of filtration area. This capacity is designed to handle the debris load of standard in-ground pool systems.
While the lifespan depends on your pool's usage and water chemistry, most cartridges require replacement every 12 to 18 months. You should inspect them periodically for signs of wear or reduced water flow.
Yes, the polyester material is designed to be cleaned periodically using a gentle spray from a garden hose. However, they will eventually lose their filtration efficiency and will need to be replaced to maintain water clarity.
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Ready to buy?
$180