Pentair R173578 130 sq ft cartridge element for Clean and Clear Plus 520Pentair OEM Filter Cartridge, 130 Sq Ft for Clean & Clear Plus 520, R173578 In stock$18699
Pentair R173578 130 sq ft cartridge element for Clean and Clear Plus 520
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Pentair OEM Filter Cartridge, 130 Sq Ft for Clean & Clear Plus 520, R173578

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$18699
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Quick overview

  • Genuine Pentair Factory element R173578, built to the dimensions the filter was designed around.
  • Four per filter The Clean and Clear Plus 520 uses four of these elements, and this listing is for one.
  • 130 sq ft each Four elements at 130 sq ft each is what gives the 520 its rated area.
  • Measures 7 inches across 7 inch diameter, 32-1/16 inch length, with a 3 inch center hole.
  • Replace as a set Elements age together, so changing all four at once keeps flow even across the tank.
  • Restores flow A tired element shows up as a pressure rise that will not come down after cleaning.
Full description and specifications ↓

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Product details

The Pentair R173578 is the genuine 130 square foot cartridge element for the Clean and Clear Plus 520 filter. It measures 7 inches in diameter and 32-1/16 inches long, with a 3 inch center hole.

Four to a filter

The Clean and Clear Plus 520 runs four of these elements in the tank, and four at 130 square feet each is where the 520 in the name comes from. This listing covers a single element, so order four for a complete change.

When to replace them

Cartridges do not last forever. Fibers pack with oils and fine debris that no amount of hosing gets back out, and the sign is a starting pressure that creeps up season after season and no longer drops after a cleaning. Replace all four together: the elements age at the same rate, and putting one new element beside three worn ones sends flow unevenly through the tank.

Specifications
Brand Pentair
Manufacturer part number R173578
UPC 788379502195
Type Replacement cartridge element
Filtration area 130 SqFt
Diameter 7 Inch
Length 32-1/16 Inch
Center hole 3 Inch
Sold as Each
Quantity per filter Filter requires 4
Material Plastic
Part type Pool filter part
Fits Pentair Clean & Clear Plus 520 cartridge filter
Shipping weight 6.25 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

How many do I need?
Four. The Clean and Clear Plus 520 takes four elements, and this listing is for one.
What are the dimensions?
7 inch diameter, 32-1/16 inch length, with a 3 inch center hole.
How much filter area does one element give?
130 square feet. Four of them make up the rated area of the 520.
Should I replace all four at once?
Yes, as a rule. The elements collect and age at the same rate, so mixing one new element with three tired ones puts uneven flow through the tank.
Ask your own question