PENTAIR

Clean & Clear® RP 100

SKU: EC-160354

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Pool Filter Size Guide

Choosing the correct pool filter ensures clear water, proper flow, and longer equipment life. An undersized filter will clog quickly and reduce circulation, while an oversized filter improves filtration and reduces maintenance.

Filter Types Explained

Cartridge Filters

  • No backwashing required
  • Excellent filtration (10-20 microns)
  • Lower water usage
  • Cleaned manually

Best for: Most residential pools, water-conscious owners

Sand Filters

  • Easy to operate
  • Backwash to clean
  • Lower filtration (20-40 microns)

Best for: Simplicity, minimal hands-on maintenance

DE (Diatomaceous Earth) Filters

  • Finest filtration (2-5 microns)
  • Backwashing + DE recharge required
  • Highest water clarity

Best for: Maximum water clarity, experienced pool owners

Filter Size by Pool Volume

Rule of thumb: Bigger is always better with filters.

Cartridge Filters (Total Square Footage)

Pool Size (Gallons) Cartridge Filter Size
Up to 15,000 100 – 150 sq. ft.
15,000 – 25,000 150 – 300 sq. ft.
25,000 – 35,000 300 – 500 sq. ft.
35,000+ 500+ sq. ft.

✔ Larger cartridges = longer time between cleanings

Sand Filters

Pool Size (Gallons) Sand Filter Size
Up to 15,000 200 lb
15,000 – 25,000 300 lb
25,000 – 35,000 350 lb
35,000+ 500+ lb

DE Filters

Pool Size (Gallons) DE Filter Size
Up to 15,000 24 sq. ft.
15,000 – 25,000 36 sq. ft.
25,000 – 35,000 48 sq. ft.
35,000+ 60 – 72 sq. ft.

Match the Filter to Your Pump

Your filter must handle the maximum flow rate (GPM) of your pump.

Plumbing Size Typical Max Flow
1 1/2″ PVC ~45 GPM
2″ PVC ~65 GPM
2 1/2″ PVC 80+ GPM

⚠️ Running a pump that exceeds the filter’s flow rating can:

  • Damage internal components
  • Reduce filtration efficiency
  • Void manufacturer warranties

Why Oversizing a Filter Is Good

✔ Cleaner water
✔ Lower pressure
✔ Longer time between cleanings/backwashing
✔ Longer filter life
✔ Better compatibility with variable-speed pumps

A larger filter paired with a lower pump speed is the most efficient setup.

Special System Considerations

You may need a larger filter if your pool has:

  • Variable-speed pump running long hours
  • In-floor cleaning system
  • Heavy debris (trees, leaves)
  • Spa spillover
  • High swimmer load

Common Filter Sizing Mistakes

❌ Matching filter size to pump HP only
❌ Choosing the minimum recommended size
❌ Ignoring maximum flow rating
❌ Underestimating debris load

✅ Always size for flow rate and pool volume

Replacing an Existing Filter?

Check the filter label for:

  • Filter type
  • Square footage (cartridge / DE)
  • Tank diameter (sand)
  • Maximum flow rate (GPM)

If you’re unsure, contact us and we’ll help you choose the correct filter.

SINGLE CARTRIDGE FILTER ENGINEERED FOR OPTIMAL PERFORMANCE

The Clean & Clear RP Filter’s innovative side-entry design optimizes flow for greater energy efficiency. Inside, the Clean & Clear RP filter has increased cartridge surface consistency to block and trap particles as small as 20 microns.

  • Union includes a low-force, quick-connect diamond-seal fastens easily
  • Lock ring includes safety latches that CLICK to confirm the closure when it hits the stops on the body.
  • High Flow™ Manual Air Relief Valve and continuous internal air relief work together to maintain optimum filtration efficiency.
  • Fiberglass-reinforced polypropylene tank for strength and corrosion resistance
  • Available in 100, 150, and 200 sq. ft. sizes

PRODUCT COMPONENTS

  • Lock ring includes safety latch that clicks when opening and closing
  • 2″ x 2.5″ plumbing for maximum flow; innovative side entry maximizes energy efficiency
  • Fiberglass-reinforced polypropylene tank for strength and corrosion resistance
  • Easy access 1″ drain

TOP-OF-THE-LINE PERFORMANCE

Lock ring includes safety latches that CLICK to confirm the closure when it hits the stops on the body.

Additional information

Weight 25.00 lbs
Dimensions 14.00 × 14.00 × 35.00 in
Max Water Flow

Port Size

Filter Area

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