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Inground Cartridge Filters

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Doheny’s Inground Cartridge Filter Product Center
Browse product specifications, compatibility information, replacement cartridge details, installation resources, and warranty coverage for Doheny’s and leading-brand inground cartridge pool filters. This guide is designed to help customers compare filter sizes, identify compatible replacement cartridges, and answer common product questions.

Common Compatibility Questions

  • Compatible with most standard inground pool circulation systems
  • Most models utilize 2 inch plumbing connections
  • Washable cartridge filter elements help reduce water waste
  • Suitable for chlorine and saltwater pool systems
  • Large-capacity cartridge filters provide extended cleaning cycles
  • Replacement cartridges are available for all listed models
  • Many systems include pressure gauges and manual air relief valves
  • Doheny’s handles warranty support for Doheny-branded cartridge filters
SKU Product Resources Specifications & Compatibility
SKU 7655
Pentair Clean & Clear Cartridge Filter 150 Sq Ft 		View Owner’s ManualView Product SpecificationsView Replacement Cartridge InformationView Replacement Parts
  • Filtration Area: 150 Sq Ft
  • Pool Compatibility: Inground Pools up to Approximately 72,000 Gallons
  • Flow Rate: 150 GPM
  • Max PSI: 50 PSI
  • Plumbing Connections: 2 Inch Union Connections
  • Replacement Cartridge: Pentair R173216 / Pleatco PAP150-4
  • Features: Thermoplastic Chemical Resistant Tank & Easy Access Cartridge Design
  • Warranty: 1 Year Manufacturer Warranty
SKU 90220
Doheny’s Deluxe Cartridge Filter System 150 Sq Ft with 1 HP Pump 		View System ManualView Product SpecificationsView Pump Information
  • System Type: Cartridge Filter & Pump System
  • Filtration Area: 150 Sq Ft
  • Pump Included: 1 HP Pump
  • Flow Rate: 130 GPM
  • Pool Compatibility: Pools up to Approximately 62,400 Gallons
  • Replacement Cartridge: #165166
  • Connections: 2 Inch Female Plumbing Connections
  • Features: Extra Large Strainer Basket & Corrosion Resistant Tank
  • Warranty: 1 Year Limited Warranty
SKU 90221
Doheny’s Deluxe Cartridge Filter System 200 Sq Ft with 1.5 HP Pump 		View System ManualView Product SpecificationsView Pump Information
  • System Type: Cartridge Filter & Pump System
  • Filtration Area: 200 Sq Ft
  • Pump Included: 1.5 HP Pump
  • Flow Rate: 150 GPM
  • Pool Compatibility: Pools up to Approximately 72,000 Gallons
  • Replacement Cartridge: #145166
  • Connections: 2 Inch Female Plumbing Connections
  • Features: Glass Reinforced Corrosion Resistant Tank & Large Strainer Basket
  • Warranty: 1 Year Limited Warranty
SKU 90803 / 15803
Doheny’s Cartridge Filter Only 120 Sq Ft 		View Owner’s ManualView Product SpecificationsView Replacement Cartridge InformationView Replacement Parts
  • Type: Cartridge Filter Tank Only
  • Filtration Area: 120 Sq Ft
  • Pool Compatibility: Inground Pools up to Approximately 23,000 Gallons
  • Flow Rate: 110 GPM
  • Max PSI: 50 PSI
  • Replacement Cartridge: PWWPC125B
  • Connections: 2 Inch Union Connections
  • Features: Includes Tank & Cartridge Element
  • Warranty: 1 Year Limited Warranty
SKU 20270
Hayward Cartridge Filter 120 Sq Ft 		View Owner’s ManualView Product SpecificationsView Replacement Cartridge InformationView Replacement Parts
  • Filtration Area: 120 Sq Ft
  • Pool Compatibility: Inground Pools
  • Connections: 2 Inch Plumbing
  • Filter Type: Washable Cartridge Filter
  • Features: Fine Debris Removal & Efficient Water Clarity
  • Maintenance: Easy Cartridge Removal & Cleaning
  • Warranty: Manufacturer Warranty Through Hayward
SKU 8040
Hayward Cartridge Filter 50 Sq Ft 		View Owner’s ManualView Product SpecificationsView Replacement Cartridge InformationView Replacement Parts
  • Filtration Area: 50 Sq Ft
  • Pool Compatibility: Smaller Inground Pools & Spa Applications
  • Filter Type: Washable Cartridge Element
  • Features: Compact Equipment Pad Footprint
  • Maintenance: Easy Cartridge Access Design
  • Warranty: Manufacturer Warranty Through Hayward
SKU 15220 / 5166 / 15802
Doheny’s / Harris Cartridge Filter 150 Sq Ft Systems & Tank Options 		View Owner’s ManualView Product SpecificationsView Replacement Cartridge InformationView Replacement Parts
  • Filtration Area: 150 Sq Ft
  • Available Configurations: Tank Only & Pump System Packages
  • Pump Options: 1 HP Pump Available on System Models
  • Connections: 2 Inch Plumbing Connections
  • Filter Type: Washable Cartridge Element
  • Features: Corrosion Resistant Tank Construction & High Dirt Holding Capacity
  • Replacement Cartridge Compatibility: 150 Sq Ft Cartridge Elements
  • Warranty: 1 Year Limited Warranty / Manufacturer Warranty Depending on Model
SKU 5215 / 15800 / 15222
Doheny’s / Harris Cartridge Filter 200 Sq Ft Systems & Tank Options 		View Owner’s ManualView Product SpecificationsView Replacement Cartridge Information
  • Filtration Area: 200 Sq Ft
  • Available Configurations: Tank Only & Complete System Packages
  • Pump Included: Up to 1.5 HP Pump on Select Models
  • Connections: 2 Inch Plumbing Connections
  • Filter Type: Washable Cartridge Filtration
  • Features: High Flow Circulation & Extended Cleaning Cycles
  • Replacement Cartridge Compatibility: 200 Sq Ft Cartridge Elements
  • Warranty: Manufacturer & Doheny’s Warranty Coverage Depending on Model
SKU 20266
Hayward Large Capacity Cartridge Filter 150 Sq Ft Tank Only 		View Owner’s ManualView Product SpecificationsView Replacement Cartridge Information
  • Type: Cartridge Filter Tank Only
  • Filtration Area: 150 Sq Ft
  • Pool Compatibility: Inground Pools
  • Connections: 2 Inch Plumbing Connections
  • Filter Type: Single Cartridge Element
  • Features: Extended Cleaning Cycles & Efficient Debris Removal
  • Maintenance: Washable & Replaceable Cartridge Filter
  • Warranty: Manufacturer Warranty Through Hayward
SKU 90570
Doheny’s Deluxe Cartridge Filter Only 425 Sq Ft 		View Owner’s ManualView Product SpecificationsReplacement Cartridge: SKU # 905703 (must order by phone at 877-891-7665)
  • Filtration Area: 425 Sq Ft
  • Pool Compatibility: Large Inground Pools
  • Filter Type: Multi-Cartridge Filtration System
  • Connections: 2 Inch Plumbing
  • Benefits: Longer Cleaning Cycles & High Dirt Holding Capacity
  • Maintenance: Washable Cartridge Elements
  • Warranty: 1 Year Limited Warranty
SKU 90571
Doheny’s Deluxe Cartridge Filter Only 525 Sq Ft 		View Owner’s ManualView Product SpecificationsView Replacement Cartridge Information
  • Filtration Area: 525 Sq Ft
  • Pool Compatibility: Large Inground Pools & High Volume Systems
  • Filter Type: Multi-Cartridge Filtration System
  • Connections: 2 Inch Plumbing
  • Benefits: Maximum Filtration Capacity & Reduced Cleaning Frequency
  • Maintenance: Washable Cartridge Elements
  • Warranty: 1 Year Limited Warranty
SKU 7654
Pentair Clean & Clear Cartridge Filter 100 Sq Ft 		View Owner’s ManualView Product SpecificationsView Replacement Cartridge InformationView Replacement Parts
  • Filtration Area: 100 Sq Ft
  • Pool Compatibility: Inground Pools
  • Connections: 2 Inch Plumbing Connections
  • Filter Type: Single Cartridge Filter
  • Features: Chemical Resistant Tank & Easy Maintenance Design
  • Maintenance: Quick Access Cartridge Cleaning
  • Warranty: Manufacturer Warranty Through Pentair

Frequently Asked Questions

How often should cartridge filters be cleaned?
Most cartridge filters should be cleaned when pressure increases approximately 8-10 PSI above the clean starting pressure. Cleaning frequency depends on pool usage and debris load.

Can cartridge filters be used with saltwater pools?
Yes. These cartridge filters are compatible with both traditional chlorine and saltwater pool systems when properly maintained.

Do cartridge filters require backwashing?
No. Cartridge filters do not require backwashing. The filter cartridges are removed and cleaned with a garden hose, helping reduce water waste.

How do I find the correct replacement cartridge?
Replacement cartridge compatibility is based on the filter model and square footage. Always verify the replacement cartridge part number listed for your filter model.

Are these filters compatible with variable speed pumps?
Yes. Most inground cartridge filters are compatible with standard single speed and variable speed inground pool pumps when plumbing and flow rates are properly matched.

Who handles warranty claims?
Doheny’s handles warranty support for Doheny-branded filters, while manufacturer-branded products such as Hayward and Pentair may require initial manufacturer contact for warranty assistance.

``` Source PDFs reviewed from uploaded ZIP for SKU/spec extraction include all cartridge filter PDFs provided by the user.

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